Does the Blast air purifier filter PM2.5?

Yes, it does. Blast's HEPA filter is designed to capture all kinds of pollutants – including PM2.5 and even nanoparticles that are 8,000 times smaller than human hair.

Do you provide a warranty?

Indeed, we offer a 1-year warranty on all our air purifiers. However, replacement filters are not covered under this warranty. If you find a manufacturing defect in your filter, please reach out to us within 14 days of receiving it, and we will provide a replacement.

How long is the shipping?

We ship orders on every business day. Delivery across Thailand ranges from 1-4 business days, depending on where you are located.

Are your air purifiers TIS-certified?

Yes, all our air purifiers have been audited and approved by the Thai Industrial Standards Institute (TISI).

Air Purifiers

Q: How often should I replace the filters?

We recommend replacement intervals as follows: Sqair: HEPA Filter (6 months), Carbon filter (3 months) Blast Mini: HEPA Filter (15 months), Carbon filter (6 months) Blast: HEPA Filter (20 months), Carbon filter (6 months)

Air purifiers are a must-have in polluted countries like Thailand. Equipped with HEPA filters, all our air purifiers effectively trap PM2.5, smoke, dust, pet hair, allergies, viruses, and bacteria.

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Sale!
Smart Air – Blast Air Purifier (150 SQM)
Rated 5.00 out of 5
Price range: ฿19,990.00 through ฿32,490.00
The Blast is a high-performance large air purifier, cleaning rooms up to 150 m² in just 25 minutes. With a CADR of 950 m³/h (CFM 559), it ranks among the most powerful and reliable 500 CFM air purifiers.
Despite its power, it operates at only 43 dB, making it one of the quietest in its class—ideal for hospitals, offices, and meeting rooms.
Built for professional use, the Blast also excels in industrial and commercial environments, making it a top-tier industrial air purifier that combines power, quiet operation, and efficiency.
Select options This product has multiple variants. The options may be chosen on the product page
Smart Air – Blast Mini Air Purifier (100 SQM)
Rated 4.92 out of 5
฿13,990.00
Blast Mini delivers powerful performance in a compact form, purifying rooms up to 100 m² with a CADR of 740 m³/h (CFM 435). It’s an ideal large air purifier for those needing strong airflow in a smaller footprint
Quiet yet efficient, it runs at just 43 dB, making it suitable for hospitals, clinics, bedrooms, and meeting spaces where silence matters.
With commercial-grade reliability, Blast Mini is also built for light industrial and commercial use, offering a compact but capable solution in the industrial air purifier market.
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Sale!
Smart Air – The Sqair Air Purifier (40 SQM)
Rated 4.69 out of 5
Price range: ฿3,990.00 through ฿8,700.00
Covering rooms as large as 40 sqm, the Sqair air purifier is an elegant solution to combat PM2.5 and other airborne threats in Thailand. Its Scandinavian minimalist design and real wood legs will bring elegance to your home, redefining the aesthetics of clean air.
Select options This product has multiple variants. The options may be chosen on the product page
Smart Air – QT3 Portable Air Purifier
Rated 4.43 out of 5
฿1,190.00
The small, lightweight QT3 portable air purifier is designed to bring you clean air wherever you go.
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STRATO Ceiling & Wall-Mounted Air Purifier
Price range: ฿37,800.00 through ฿47,800.00
The STRATO air purifier series, featuring STRATO Core and STRATO Max, offer powerful ceiling or wall-mounted air purification for spaces from 50-170 m². With advanced H13 HEPA and Activated Carbon filtration, they ensure clean air via touch, WiFi, or remote control. Choose Core for 56-96 m² or Max for 91-170 m² coverage.
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Sale!
Blast Air Purifier & Qingping Pro Bundle
Original price was: ฿26,980.00.Current price is: ฿25,590.00.
Improve your indoor air with the Blast Air Purifier and Qingping Pro bundle. The purifier removes pollutants and allergens, while the monitor provides real-time air quality data. Together, they ensure a cleaner, healthier home environment.
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Sale!
Blast & Qingping Lite Bundle
Original price was: ฿23,980.00.Current price is: ฿23,190.00.
Breathe cleaner air with the Blast air purifier and Qingping Lite monitor, the perfect duo for tackling indoor pollution. Stay informed with real-time readings of PM2.5, CO2, and humidity, while enjoying fresh air and peace of mind.
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Sale!
Blast Mini & Qingping Pro Bundle
Original price was: ฿20,980.00.Current price is: ฿19,590.00.
Clear indoor air pollution with the Blast Mini purifier and Qingping Pro+ monitor, the perfect clean air duo. Stay informed with real-time PM2.5, CO2, TVOC, and humidity readings while the Blast Mini ensures powerful purification.
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Sale!
Blast Mini & Qingping Lite Bundle
Original price was: ฿17,980.00.Current price is: ฿17,190.00.
Say goodbye to indoor air pollution with the Blast Mini air purifier and Qingping Lite monitor. Breathe easy and stay informed on PM2.5, CO2, and humidity in real-time.
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Sale!
Sqair & Qingping Pro Bundle
Price range: ฿10,290.00 through ฿14,550.00
Achieve clean air and stay informed with the ultimate bundle: the Sqair purifier and Qingping Pro+ monitor. The Qingping Pro+ tracks PM2.5, CO2, TVOC, and humidity in real time, perfectly enhancing the Sqair’s powerful purification.
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Sale!
Sqair & Qingping Lite Bundle
Price range: ฿7,380.00 through ฿11,990.00
Introducing the perfect air quality duo! Our bundle includes the powerful Sqair air purifier, designed to efficiently clean your indoor air, and the sleek Qingping Lite air quality monitor, giving you real-time insights into your environment.
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Fast Shipping

From our office in Bangkok to your doorstep: Your order will arrive within 2-3 business days.

Secure Payments

We offer Credit Card payments, Promptpay, True Money, and Bank Transfers.

Speedy Customer Service

Something is wrong with your order? Do you have a question? Contact us here, and we’ll sort it out.

FAQ’s

Yes, all our air purifiers have a 1-year warranty. In case of any damage just contact us and we’ll find a solution.

Shipping throughout Thailand usually takes 2-3 business days.

We recommend replacement intervals as follows:

Sqair: HEPA Filter (6 months), Carbon filter (3 months)
Blast Mini: HEPA Filter (15 months), Carbon filter (6 months)
Blast: HEPA Filter (20 months), Carbon filter (6 months)

Our HEPA filters capture particles from 0.005 μm (nanoparticles) to 30 μm (pollen), including viruses, bacteria, PM2.5, PM10, pet allergens, dust, and mold.

Our carbon filters absorb VOCs (volatile organic compounds) like formaldehyde, paint thinners, and fuel fumes, and they also eliminate odors.

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Our Air Cleaners Work. Watch it Yourself.

Have you ever wondered if air cleaners really work? Hit play and watch how they take on pollution, so you don’t have to breathe it!

All our air purifiers capture PM2.5, viruses, bacteria, and various other pollutants extremely well.

Air Purifiers: Your Guide to Breathing Better Air in Thailand

In Thailand, where indoor air quality is a growing concern, air purifiers are more important than ever. During the cold season, Bangkok and Chiang Mai rank among the most polluted cities globally. According to Greenpeace Thailand, air pollution was linked to approximately 29,000 deaths in 2021. These alarming numbers highlight the urgent need to improve the air we breathe.

Using air purifiers in your home or office will make a real difference. They remove harmful particles like PM2.5, viruses, dust, pollen, smoke, and even bacteria, helping you to breathe healthier air daily.

At WEDO AIR, we’re dedicated to improving your indoor air with top-quality air cleaners. With over five years of expertise in air purification technology, we provide trustworthy information and products that will help you breathe cleaner air in Thailand. Keep reading to learn more about air purifiers and hit us up if you have any questions.

sqair next to a couch in a living room — *Air purifiers improve indoor air quality in polluted environments*

*Air purifiers mainly consist of HEPA and Carbon filters*

What is an Air Purifier and How Does It Work?

Air purifiers are simple machines that draw in polluted air and pass it through filters. The filters capture harmful particles and release fresh, clean air back into the room.

There are multiple types of air purifiers, but the core ingredient of all air cleaners are HEPA (High-Efficiency Particulate Air) filters. They are a simple technology, and according to NASA, HEPA filters are able to capture 100% of particles—ranging from tiny viruses to annoying pollen.

Another useful filter many air purifiers contain is an activated carbon filter. These absorb odors and harmful gases like VOCs (Volatile Organic Compounds). Some air purifiers also use UV light or ionizers to neutralize airborne pathogens. However, numerous studies see UV lights and Ionizers critically, as they are either too weak to have an effect (UV lights), or produce other harmful pollutants like Ozone or PM2.5 (Ionizers).

air purifier in the background, air quality sensor in the foreground displaying good air quality — *The Blast air purifier in the background effectively cleans the air, as indicated by the sensor.*

Are Air Filters Actually Effective?

Yes, they are! Numerous scientific tests prove that HEPA air purifiers work well and effectively filter air pollution indoors. Just be cautious in your choice: opt for reputable machines like ours instead of the 700-Baht versions on Lazada or Shopee. They are too weak to make a difference in air quality.

To verify if your air purifier is working effectively, use an air quality monitor. Place it on the opposite side of the room and check the readings. This will show whether your purifier is improving the air quality or not.

If PM2.5 remains high, your air purifier might be too weak to cover your space, or the filter needs to be replaced.

What Filters Do I Need?

HEPA Filter

The core ingredient of every air purifier is a HEPA filter. HEPA filters are a simple technology invented over 80 years ago. They consist of randomly woven fibers that trap pollutants of all sizes – even nano-particles 10 times smaller than a virus. Until today, HEPA filters are the most proven and best solution when it comes to filtering solid particles from the air.

pm2.5 air pollution in bangkoks skyline — PM2.5

virus particles under the microscope — Viruses

a closeup of a woman's mouth filled with cigarette smoke. — Smoke

bacteria particles under a microscope — Bacteria

a person inserting a hepa filter into an air purifier — HEPA filters capture PM2.5, viruses, bacteria, pet hair, dust mites and mold spores

Carbon Filter

Carbon filters provide additional protection against VOCs (Volatile Organic Compounds). These are chemicals found in many products like paints, cleaning materials, or even factory-new furniture. Carbon filters consist of porous charcoal particles that absorb these chemicals from the air. They also help get rid of bad smells.

a few buckets of dangerous paints on white background — Paints

A person covering her nose from bad smells — Smells

A few cleaning detergents in the bathroom — Cleaners

A glass full of a smoky chemicals — Smoke

a hand filling benzene into a car — Benzene

a bottle of formaldehyde on white background — CH2O

When to Consider an Air Purifier?

Air filters offer several benefits that can greatly improve your indoor air quality. If you’re considering whether you need one, here are some reasons why and when an air purifier can make a real difference:

Air Pollution & PM2.5

Our study on air pollution in Thailand revealed that exposure levels in some provinces are equivalent to smoking nearly 70 cigarettes a month. If you’re concerned about PM2.5, then HEPA air purifies will help reduce smog inside your home.

Allergies and Asthma

Pet Owners

Pet owners will appreciate how HEPA air purifiers help with pet hair and odors. They keep your home smelling fresh and free of excess fur, making it more comfortable for both you and your pets.

Smoke and Odor Removal

Smoke and unwanted odors are another reason to consider an air filter. Whether it’s tobacco smoke, wildfire smoke, or cooking smells, air purifiers containing Carbon filters can remove these contaminants, making your indoor space more pleasant.

Chemical Sensitivities

If you’re sensitive to chemicals, air purifiers can reduce exposure to VOCs (Volatile Organic Compounds). These harmful gases are emitted by products like cleaning supplies, paints, and furniture. Air cleaners with activated carbon filters can absorb these chemicals, protecting your health.

How to Choose the Right Air Purifier?

Choosing the right air purifier can be tricky without knowing the key factors to consider. Let us encourage you to ignore the brand hype marketing. Expensive air purifiers aren’t necessarily better air purifiers. As mentioned above, air cleaners are simple machines mainly consisting of a fan and a filter.

Instead, focus on the following aspects:

Room size and coverage
Clean Air Delivery Rate (CADR)
Noise levels
Filter replacement and maintenance cost
Energy consumption

Room Size & Coverage

Most importantly, start by measuring your room to determine its size. Most air purifiers are designed to clean room sizes up to 30 sqm. If you live in bigger spaces, look out for large room air purifiers. Manufacturers usually list the recommended coverage area in square meters or square feet, but be cautious—some may overstate their purifier’s capabilities, meaning the device might not be as powerful as advertised. A better way to verify if an air purifier suits your room size is by checking its Clean Air Delivery Rate (CADR).

Clean Air Delivery Rate (CADR)

The Clean Air Delivery Rate (CADR) tells you how efficiently an air purifier cleans the air. CADR is either measured in cubic meters per hour (m³/hr) or square feet per minute (sqft/min). A higher CADR means faster and more effective purification. To learn more about using the CADR to find the right air purifier for your room size, click here.

CADR (m³/hr)	Room Size (m²)
50-100	5-15
100-200	15-25
200-300	25-35
300-400	35-45
400-500	45-60
500-600	60-80
600-700	80-90
700-800	90-100
800-900	100-130
900-1000	130-160

A higher CADR means a more powerful air purifier. The table shows recommended CADR for different room sizes.

a clean white hepa filter next to a dirty hepa filter — HEPA filters are a simple technology but some companies mark up their price. Better check the filter replacement prices before making a purchase.

Noise Levels

If you’re sensitive to noise or plan to use the purifier while sleeping or working, pay attention to the noise levels. Noise is measured in decibels (dB). Some air purifiers operate quietly at low settings but can be louder on higher speeds. Check the decibel ratings for each setting to find a model that won’t disrupt your peace and quiet.

Filter Replacement and Maintenance Costs

Air purifiers require regular filter replacements to work effectively. Before buying, find out how often the filters need changing and how much they cost. Knowing the maintenance costs upfront helps you avoid surprises down the road.

Energy Consumption

Because air purifiers often run continuously, energy consumption is an important consideration. The good news is that most air purifiers are quite energy-efficient since they primarily operate using a simple fan.

Maintenance and Care Tips

Proper maintenance keeps your air purifier running efficiently and extends its lifespan. Regular cleaning is essential. Wipe down the exterior and pre-filter with a soft cloth to remove dust. If your model has a pre-filter, vacuum or wash it according to the manufacturer’s instructions to eliminate larger particles like dust and pet hair.

Timely filter replacement is crucial. Filters become less effective as they collect particles. Replace them as recommended, usually every 6 to 12 months. The HEPA filters of our Blast Mini and Blast last up to 15 and 24 months.

Using external pollution sensors like the Qingping Lite and Qingping Pro+ can help you get the most out of your air purifier. Place these sensors at the opposite end of the room to monitor how well your purifier is performing. If your air purifier is taking unusually long to reduce pollution levels, it might be time to replace the filter.

a photo of a males hand cleaning the pre-filter of an air purifier with a cloth — Cleaning the pre-filter from dust will increase the performance