FAQs
Do your air purifiers cure allergies?
Our HOCl and plasma technologies reduce the number of allergens in a space, providing you with cleaner air to breathe, however it is not a cure for allergies or asthma.
How good are your air purifiers?
DH Lifelabs offers two highly effective lines of air purification products, one that focuses on active air purification and another on dry air purification and natural deodorization. That means they do more than devices with filters alone. Aaira (HOCl Technology) creates a powerful solution from all-natural ingredients (non-iodized salt and water) that is dispersed into the room to eliminate bacteria, mould, and viruses in the air. It also reduces stubborn odours, leaving a fresh and clean scent. Sciaire (PlasmaShield Technology) mimics air ionization found in nature. PlasmaShield emitters create negative and positive ions that are sent into the room to attack and eliminate bacteria and viruses on contact. They are also paired with a filter that removes airborne pollutants and allergens for dual protection.
How often will I need to change the filter?
Depending on the filter, we recommend replacement at 6 or 12 months. DH Lifelabs air purifiers will alert you when filters need to be changed. This saves you money and allows the filters to work more efficiently.
How do I replace the filter?
Please refer to your Instruction Manual. A downloadable version is available in the Support section.
Can I leave the air purifier on all day?
Yes, by leaving your unit running it will continuously be drawing in the room air and filtering out the impurities.
Where is the best place to put my air purifier?
Place your air purifier where it has the best air flow, approximately 1 to 3 feet away from the walls and furniture at minimum. Place your device where you spend the most time (such as your living room or bedroom), or where you have the most concern about odours or allergens (for example the kitchen where you cook or where your pets are).
What size air purifier should I buy?
Check the certified room size information on the box but consider purchasing an air purifier that will effectively clean a larger area than the one you are going to use it in, this will help the air purifier clean the air faster and more often.
Should I sleep with the air purifier on?
The Asthma and Allergy Foundation of America (AAFA) recommends an air purifier during bedtime to promote better breathing while you sleep. If your air purifier has a sleep mode, the fan will continue to run at an ultra-low speed for silence and the blue light inside the tank will turn off.
Is there any UV light in the Aaira or Sciaire product lines?
No, Aaira and Sciaire products do not have UV lights.
How do I reach Customer Service?
Customer service can be reached Monday - Friday, 9 am to 5 pm, by phone at 0300 373 0739 or via email at: UKcustomerservices@dhlifelabs.com
How do I know the air purifier is working?
Truthfully, it will take a little time before you notice less dust in your space, but our air purifiers change the air 4.8x an hour removing germs, viruses, bacteria and removing dust, pollen, and pet dander to improve the air in the space you breathe.
What level of microns does the Aaira + Humidifier filter down to?
Our Aaira + Humidifier pre-filter traps larger particles, >PM2.5, like pet hair, sand, and dust.
I see a P65 warning label on this product regarding lead, which obviously is concerning given that we want to use this in sensitive areas to purify air. Can I get more detail on why the label is there and where lead comes into play with regards to this product?
There is lead in the power cord (all power cords contain some lead) and with California Prop 65 we must have the warning even if it is trace amounts.
I'm having a hard time with the cord where it attaches to the machine. Unless I position it very carefully (kind of propping it up) it falls out, and even once I have it just right if it is even slightly bumped it falls out. Is this intentional or is there something wrong with my cord or machine?
The power cord should not fall out or be loose in any way. Please contact UKcustomerservices@dhlifelabs.com so we can address your concern. Your satisfaction is important so please contact us by email and we’ll work to resolve your issue.
Is your purifier effective at eliminating mould particles from the air?
The DH Lifelabs air purifiers remove up to 99.9% of airborne pollutants, including mould, as well as dust, pollen, smoke, and pet dander with the help of a H13 True HEPA Filter that captures allergens as small as 0.1 microns. The H-13 True HEPA filter has a pre-filter, HEPA filter and activated carbon filter. Air purifiers will not remove mould but can help reduce the spread of airborne mould spores. Consult a professional if you suspect or have a mould issue in your home or workplace.
Does the warranty apply if bought on Amazon and not on the official store website?
The 2-year limited warranty applies regardless of if it was purchased from Amazon or through the DH Lifelabs website.
What is the warranty on DH Lifelabs products?
Equipment manufactured by DH Lifelabs is warranted by DHLL to be free from defects in workmanship or materials. Our warranties vary based on the product. Please see specific product pages in this website for warranty periods. They range from 3-5 years.
How do I register my products?
Scroll down this page to the "Product Registration" section and fill in the form.
What is the life span of DHLL equipment?
DHLL equipment is designed to last over 15 years which is longer than the typical HVAC equipment it is installed within.
Is your product UL certified?
Our technology complies with UL 867 and UL 2998. Having UL2998 certification means we produce “zero ozone”.
What is an Air Purifier?
An air purifier is an electronic appliance, used in homes and businesses, to increase and improve overall indoor air quality.
Why use an Air Purifier to improve indoor air quality (IAQ)?
The EPA talks about controlling pollutants and reducing risks in homes and the workplace - Indoor Air Quality (IAQ) refers to the air quality within and around buildings and structures, concerning the health and comfort of its occupants. Understanding and controlling common pollutants indoors can help reduce your risk of indoor health concerns.
There are locations or times of the year where outdoor air is dirtier than indoor air. The EPA lists the air cleaner as an important and effective line of defense for improving air quality.
Proper air filtration is an effective method of reducing certain wildfire smoke pollutants indoors and potentially limiting the risk of negative health impacts associated with exposure to wildfire smoke.
How does an Air Purifier work?
Air purifiers draw in the air from a given space (kitchen, bedroom, family room) through an intake in the unit.
The air passes through the filter system(s) (Pre-filter, HEPA, True HEPA, Cold Evaporation, Charcoal), it is scrubbed clean, and released back into the room as clean, purified air.
What is CADR (Clean Air Delivery Rate)?
The Clean Air Delivery Rate measures the cleaning speed of the air purifier for removing smoke, dust, and pollen.
It is given in three measurements: one for pollen, one for tobacco smoke and one for dust.
The higher the CADR number the faster the unit filters the air.
The term ‘clean’ means ‘filtered air,’ and it does not guarantee filtration quality.
Air Purifier efficiency = CADR ratings; Air Purifier effectiveness = Filter types.
How do I know the product is working/doing what it says it does?
Since air purifiers clean air to an almost microscopic level, it is quite normal to doubt if the machine is genuinely operating the way it should. Here are ways to check if your air purifier is working:
(1) check the unit’s airflow, a working air purifier presents clear, consistent airflow (easily determined by placing your hand over the system)
(2) you should smell a difference in the air quality, a slight chlorine-like scent
(3) use the filter test, this means to look at the internal filters that come with the device. A dirty filter is a sign that the system is working, meaning air is entering the device and the filter is capturing pollutants before air leaves the device.
What is the difference between Cleaning, Disinfecting, Sanitizing and Sterilizing?
Cleaning removes dirt, dust, crumbs, and germs from surfaces or objects. When you clean, you use soap (or detergent) and water to physically clean off the surfaces and objects. This does not kill the germs, but as germs were eliminated, fewer germs remain that could spread infection.
Disinfecting uses chemicals (disinfectants) to kill germs on surfaces and objects. Some common disinfectants are bleach and alcohol solutions. You usually need to leave the disinfectant on the surfaces and objects for a certain period to kill the germs. Disinfection eliminates many or all pathogenic microorganisms, except bacterial spores, on inanimate objects. Disinfecting does not necessarily clean dirty surfaces or remove germs.
Sanitizing reduces or eliminates pathogenic agents, such as bacteria, on the surfaces of objects, lowering the number of germs to a safe level.
Sterilizing means to kill ALL microbes, whether harmful or not, and their spores on a surface or object.
Where is the best place to put the air purifier?
Place it near worst air pollutants (smoke, odour, mould source)
Put the air purifier 3-5 feet off the ground and approximately 12” from a wall.
Put it in places with highest airflow (doorways, walls, near window)
For maximum efficiency, move the air purifier around – it is portable for a reason!
You can increase the efficiency of the air purifier by up to 20% if you correctly place it. What is even more important, if you put it in a corner or behind a television, you can lose more than 50% of the overall air purifier capacity.
Just by moving it around, you can make a bigger difference in the effectiveness of an air purifier than placing it perfectly in a single room.
Do not place air purifier in a corner (low indoor airflow)
Do not put obstacles in air purifier vicinity (optimize airflow)
Avoid places with high humidity (bathroom, cooking area)
Do not put it near electronic devices (tv, stereo, microwave)
What is a 3-in-1 HEPA filter?
3-in-1 filtration refers to an air filter that combines multiple filtration technologies into a single filter:
The first stage is the pre-filter that captures larger particles such as dust, pet dander and hair, preventing them from passing through to the other filter layers.
The second stage is the Activated carbon filter that is effective at absorbing and reducing odours, smoke, harmful gases, and VOCs. It helps improve overall air quality and reduces unpleasant smells.
The third stage is the HEPA filter. The HEPA filter captures and traps extremely small particles such as allergens, mould spores, dust mites and fine particles like PM2.5. They are highly efficient and capable of removing over 99% of airborne particles 0.1 micron or larger.
Combining these three layers of filtration provides comprehensive air purification resulting in cleaner and healthier indoor air.
What type of pollutants does an air purifier capture?
Air purifiers can remove airborne particles like dust, smoke, pet dander, pollen, mould and mildew spores, bacteria, and viruses as small as:
0.1 microns. Here are some common household particles and their relative size: (One micron = 39 millionths of an inch)
0.3 - 1 micron = Tobacco Smoke, Bacteria, Metallic Fumes
1 - 5 microns = Bacteria and Small Dust Particles
5 - 10 microns = Mould, Pollen, Medium Dust Particles
10 microns = Large Dust Particles
25 microns = Debris and Dust Particles (visible to the naked eye)
150 microns = Human Hair
What size air purifier should I buy?
Check the certified room size information on the box but consider purchasing an air purifier that will effectively clean a larger area than the one you are going to use it in, this will help the air purifier clean the air faster and more often.
Can the air purifier pull air from other rooms or around the corner?
Air purifiers work best in the areas they are contained to and cannot pull air through walls, around corners, down hallways, or staircases to clean other spaces.
Can I run the air purifier all day?
Most air purifiers take 30 minutes to 2 hours to clean indoor air. Since air pollution is a pervasive and continuous problem, it is best to leave your air purifier on all day.
There are no perceived drawbacks to keeping your unit running all the time, and if the filter(s) is/are properly maintained it can help reduce pollutants in your home.
It is recommended to run your air purifier all the time (24/7) to keep indoor air clean and free of allergens.
If your air purifier has a sleep mode, the fan will continue to run at an ultra-low speed for silence.
Should I sleep with the air purifier on?
The Asthma and Allergy Foundation of America (AAFA) recommends an air purifier during bedtime to promote better breathing while you sleep. If your air purifier has a sleep mode, the fan will continue to run at an ultra-low speed for silence and the blue light inside the tank will turn off.
What is VOC’s (Volatile Organic Compounds)?
Volatile organic chemicals (VOCs) are a group of chemicals that easily evaporate and have a “sweet” odour commonly associated with paints and glues. They are found in second-hand smoke, fuels, oils, automobile exhaust, industrial solvents, and a wide variety of consumer products. They can be found at low levels in homes and in the environment, including the air (indoor and outdoor), water, soil, dust, and food.
How loud are air purifiers?
An air purifier noise level depends on the size, type, quality, and brand. Larger air purifiers are usually louder but more powerful, while smaller ones are quieter and used in smaller spaces. The product specifications in the Instructions Manual of your unit will provide the decibels (dB(A)).
Do air purifiers remove mould?
Air purifiers will not remove mould but can help reduce the spread of airborne mould spores. Consult a professional if you suspect or have a mould issue in your home or workplace.
How do I get replacement parts for my air purifier?
You can order replacement parts directly from our website at www.dhlifelabs.co.uk
How much does it cost to run the air purifier?
Running your air purifier does not cost too much, it is like running a standard bathroom fan.
Will the air purifier remove odours?
Yes, the carbon filter helps eliminate unpleasant odours, so your indoor air remains fresh. Together, activated carbon and a HEPA filter can trap 99.95% of small particles 0.1 microns and higher as well as most larger particles, especially spores.
Are the units still considered air purifiers even if they do not have a HEPA filter?
Filters used to be the foundation of air purifiers’ performance. With advancements in technology, it is now possible for an air purifier to function effectively without the use of a filter. It applies other cleaning technology to get the job done.
Is there any UV light in the Aaira or Sciaire product lines?
Aaira and Sciaire products do not have UV lights.
Are DH Lifelabs products tested by an independent third party?
Yes, all DH Lifelabs products are tested by third-party labs under appropriate testing conditions.
What is the outdoor Air Quality Index (AQI) and what does each of the colours mean?
The Air Quality Index (AQI) is the system used to warn the public when air pollution is dangerous. The AQI is divided into six colour code categories and advice is given to go along with it:
a. Green: Good. No advisories.
b. Yellow: Moderate. Unusually sensitive individuals should consider limiting outdoor exertion.
c. Orange: Unhealthy for sensitive groups. Children, active adults, and people with respiratory disease, such as asthma, should limit outdoor exertion.
d. Red: Unhealthy. Children, active adults, and people with respiratory disease, such as asthma, should avoid outdoor exertion; all others should limit prolonged outdoor exertion.
e. Purple: Very Unhealthy. Children, active adults, and people with respiratory disease, such as asthma, should avoid all outdoor exertion; all others should limit outdoor exertion.
f. Maroon: Hazardous. Everyone should avoid all physical activity outdoors.
What is the difference between air purifiers and sanitizers?
Sanitizers and purifiers both work to reduce the pollution in indoor air and improve its quality:
Sanitizers work better to remove bacteria, mould, and viruses,
Purifiers are usually more efficient at reducing dust and pollen particles in the air.
What is the warranty? Is it on the whole product or just certain parts?
There is a limited 2-year warranty for repairs and replacement of products found to be defective in material or workmanship. This warranty does not apply to damages resulting from commercial, abusive, unreasonable use or supplemental damages. Defects considered normal wear and tear will not be considered manufacturing defects under this warranty. At its option, DH Lifelabs will repair or replace this product if it is found to be defective in material or workmanship. This warranty does not cover damages resulting from any unauthorized attempts to repair or from any use not in accordance with the instruction manual. This warranty does not cover the filter except for materials or workmanship defects.
What does this warranty cover?
DH Lifelabs limited 2-year warranty policy applies ONLY to products, devices, and accessories that are manufactured by DH Lifelabs. The Policy covers defects in materials and workmanship of the Products for the warranty period. This warranty is only valid if the machine is used in the country in which it is sold. Please see the Warranty section of our website for complete details Warranty – DH Lifelabs
What is the Return and/or exchange policy?
If, for any reason, you are not satisfied with your purchase, please return it to DH Lifelabs within 30 days from the date of delivery with proof of purchase. We will replace it or refund the cost of the item. All returned items must be in their original packaging and in the condition in which they were received for a full refund. Email UKcustomerservices@dhlifelabs.com within 30 days following the date of delivery to request a return.
If you purchased your unit from an Authorized Retailer…
Returns should be made to the retailer of the original purchase. If you are having issues with a DH Lifelabs device, DH Lifelabs can support with warranty service. Please contact DH Lifelabs Customer Services UKcustomerservices@dhlifelabs.com.
How do I reach Customer Service?
Customer Service can be reached by email at UKcustomerservices@dhlifelabs.com.
How do I return or request a replacement on Amazon?
To return or request a replacement unit from Amazon:
1. Go to Your Orders to display your recent orders.
2. Choose the order and select Return or Replace Items.
3. Select the item you want to return. Then select an option from the “Reason for Return” menu.
4. Choose Return or Replacement.
5. Select your preferred return method.
6. Print your return label and return authorization.
7. Add your return label (if applicable) and package your items for return
We’re here to help!
Our customer support is available at UKcustomerservices@dhlifelabs.com
Instruction Manuals
Product Registration
Warranty
LIMITED WARRANTY POLICY
Thank you for choosing DERNIER & HAMLYN products. We are pleased to have your business. To help us ensure you receive prompt and efficient service, please retain your proof of purchase and register your machine as soon as possible. To register your warranty, please submit our registration form on our Product Registration page.
Please refer to the instruction manual to verify how to care for your machine. If you have any questions about your machine or this limited warranty, please call our Customer Services Department.
1. What This Warranty Covers
DERNIER & HAMLYN’s limited 2-year warranty policy (“Policy”) applies ONLY to products, devices, and accessories that are manufactured by DERNIER & HAMLYN (each a “Product” and collectively “Products”). The Policy covers defects in materials and workmanship of the Products for the warranty period as described in Section 5 below. This warranty is only valid if the machine is used in the country in which it is sold.
2. Who Can Use This Warranty
This Limited Warranty is NOT transferable and applies ONLY to direct customers who purchase Product(s) from DERNIER & HAMLYN (“Customer”, “you”, or “your”) and member(s) of your immediate household.
3. How You Obtain Warranty Service
Repair within the Warranty Period. In the event of a malfunction or failure of Products, please contact DERNIER & HAMLYN directly for further assistance and if applicable, for return instructions. You can reach our Customer Services Department by email UKcustomerservices@dhlifelabs.com.
To obtain warranty services, you must return the defective Product(s) along with proof of purchase in accordance with the return instructions provided by our Customer Services Department.
If you start a claim for warranty services and we confirm that your Product is defective in materials and workmanship, we’ll replace, repair or refund it (in our discretion). If we replace or repair it, we’ll make sure it performs substantially in accordance with this Policy. We may replace or repair it using new, refurbished, or serviceable used parts (in our discretion) that are at least functionally equivalent to the original product at no charge and will cover any shipping charges. If we replace or repair your Product, we warrant that the replacement or repaired Product will be materially free of faulty materials or workmanship for the remainder of your original Warranty Period for 30 days after the replacement or repaired Product is delivered to you, whichever is later.
Repairs Outside of Warranty
Beyond two (2) years from the date of purchase, if a defect exists, you may mail your Product to us for repair and inspection. Upon inspection, we may send you a quote for repairing your Product, though we can no longer accept a return or exchange. You will be solely responsible for shipping charges associated with any repairs outside of warranty. We reserve the right to keep your Product with defect if you elect not to pay for a repair and we determine (in our discretion) that the Product is a safety hazard or cannot be used as intended without repair.
No Insurance
This Policy is not an insurance and does not cover any perils (e.g. fire, theft or loss).
Lost Proof of Purchase
If you do not have your proof of purchase, your warranty will start 60 days after the date of manufacture in accordance with DERNIER & HAMLYN records.
4. What This Warranty Does NOT Cover
Your limited warranty does not cover (and DERNIER & HAMLYN is not responsible for) for the following reasons:
A. Altered or Modified Products
Products’ original parts or serial numbers have been removed, altered, or cannot be readily determined. Model and serial numbers, along with original sales receipts, are required for warranty validation.
B. Misuse of Products
Any damages or malfunctions caused by negligence, abuse, or use not in accordance with the instructions provided in the applicable quick start guide or instruction manual enclosed with the Product(s) (“User Manual”).
- Products found to be defective after the warranty period has expired.
- Products damaged due to a natural disaster, including but not limited to lightning, flooding, earthquake, or fire.
- Failure of Products to perform during power failures and interrupted or inadequate electrical service or damages caused by incorrect electrical current, voltage, or proper power supply (see voltage label on machine).
- Failure of Products caused by handling, including tampering, mishandling, neglect, accidental damage, modification, abuse, misuse and/or repair done by anyone other than authorized DERNIER & HAMLYN service personnel. Modifications or alterations made to the voltage of unit will void the warranty.
C. Excluded Products
- Any defects or damages caused by the use of filter or parts other than those original, genuine DERNIER & HAMLYN replacement filters or parts installed according to the manufacturer recommended filter replacement schedule listed in the User Manual. This warranty is also void if you use counterfeit DERNIER & HAMLYN replacement filters or parts that are not manufactured or sold by DERNIER & HAMLYN.
- Products have been resold to third parties or used for rental purposes. We provide this warranty only to you who are the original owner and end-user of our Product. You cannot assign or transfer this Warranty to anyone, including a subsequent purchaser or friend, or family member who is not an immediate household member. Warranties are not available from third-party resellers.
D. Wear and Tear of Products
This Policy does not cover normal deterioration of the exterior finish, including but not limited to scratches, dents, paint chips, or to any corrosion or discolouring by heat, abrasive and chemical cleaners, unless occurring due to defective workmanship or material.
5. Warranty Period and Coverage
Warranty Period : Two years from date of original purchase
Product : Aaira Mini, Aaira + Humidifier, Aaira Surface, Aaira + HEPA, Sciaire Portable, Sciaire Mini +HEPA, Sciaire + HEPA, Sciaire Essential.
Coverage : Your machine is warranted against original defects in materials and workmanship when used for normal domestic purposes in accordance with the User Manual.
6. What Limitation of Liability
EXCEPT FOR THE EXPRESS WARRANTY SET FORTH HEREIN, DERNIER & HAMLYN DISCLAIMS ANY IMPLIED WARRANTY, GUARANTEE OR REPRESENTATIONS AS TO THE FITNESS FOR ANY PARTICULAR PURPOSE, PERFORMANCE, QUALITY AND ABSENCE OF HIDDEN DEFECTS, AND ANY REMEDY FOR BREACH OF CONTRACT, WHICH BUT FOR THIS PROVISION, MIGHT ARISE BY IMPLICATION, OPERATION OF LAW, CUSTOM OF TRADE OR COURSE OF DEALING, OR COURSE OF PERFORMANCE, INCLUDING IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. EXCEPT AS PROVIDED IN THIS AGREEMENT, DERNIER & HAMLYN FURTHER DISCLAIMS ANY RESPONSIBILITY FOR LOSSES, EXPENSES, INCONVENIENCES, SPECIAL, INDIRECT, INCIDENTAL, SECONDARY, CONSEQUENTIAL, SPECIAL OR PUNITIVE DAMAGES ARISING FROM OWNERSHIP OR USE OF THE PRODUCTS.
THIS WARRANTY IS YOUR EXCLUSIVE REMEDY FOR DEFECTIVE MATERIALS OR WORKMANSHIP IN YOUR PRODUCT(S). IF YOUR JURISDICTION GIVES YOU ANY IMPLIED WARRANTY, THEN TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, THE DURATION OF SUCH IMPLIED WARRANTY IS LIMITED TO THE WARRANTY PERIOD. SOME JURISDICTIONS DO NOT ALLOW LIMITATIONS ON HOW LONG AN IMPLIED WARRANTY LASTS, SO THIS LIMITATION MAY NOT APPLY TO YOU. SOME JURISDICTIONS DO NOT ALLOW THE EXCLUSION OR LIMITATION OF INCIDENTAL OR CONSEQUENTIAL DAMAGES, SO THE ABOVE LIMITATION OR EXCLUSION MAY NOT APPLY TO YOU.
This Limited Warranty gives you specific legal rights. You may also have other rights that vary by states, and from country to country. For details, please refer to the detailed warranty conditions provided by the DERNIER & HAMLYN distributor(s) in your country of purchase (if applicable).