The air inside your room can be 5x more polluted than the air outside. Dust, allergens, bacteria, PM2.5 particles — they float around every day, invisible to the eye. A good room air purifier with the right filter removes up to 99.97% of these particles before you breathe them in.
We manufacture both — complete room air purifiers and the filters that power them. Factory-direct. Quality-tested. Delivered across India.
What Is a Room Air Purifier?
A room air purifier is a device that pulls indoor air through a series of filters and releases clean air back into the room. It runs continuously, cycling the room’s air multiple times per hour.
The purifier’s performance depends almost entirely on the filter inside it. A weak filter means weak results, no matter how premium the machine looks.
That’s why we manufacture both — so the filter and the purifier are built to work together, not assembled from mismatched parts.
Benefits of Using a Room Air Purifier
A room air purifier does one job: remove what shouldn’t be in your air. The results are measurable.
Allergy relief. Pollen, dust mite debris, and pet dander are the three most common indoor allergens. An H13 HEPA room air purifier removes all three at 99.97% efficiency. Most allergy sufferers notice reduced symptoms within the first week of consistent use.
Better sleep. Dust and allergens irritate the nasal passage during sleep, causing snoring, dry throat, and interrupted breathing. A room air purifier running overnight keeps particle levels low, which directly improves sleep quality.
PM2.5 reduction. India’s urban air carries dangerously high PM2.5 levels year-round — not just in winter. A room air purifier reduces indoor PM2.5 by 80–90% within 30 minutes in a closed room.
Odor and VOC removal. Cooking smells, paint fumes, cleaning chemicals, and cigarette smoke all release gases that standard HEPA alone can’t handle. Adding an activated carbon layer removes these gases along with the particles.
Infection control. Airborne bacteria and some viruses are captured by HEPA filtration. In households with elderly members, infants, or immunocompromised individuals, this matters.
Productivity. Studies have shown that cleaner indoor air — lower CO2, lower particulate load — improves concentration and reduces fatigue. It’s a measurable effect, not marketing language.
Types of Filters We Manufacture
We produce all major filter types used in room air purifiers. Here’s what each one does:
HEPA Filter (H13 / H14 Grade)
HEPA stands for High-Efficiency Particulate Air. An H13 HEPA filter captures 99.97% of particles as small as 0.3 microns — that includes dust, pollen, pet dander, mold spores, and most airborne bacteria.
This is the gold standard in air filtration. Every serious air purifier needs one.
We manufacture HEPA filters in H11, H12, H13, and H14 grades. H14 captures 99.995% of particles and is used in hospitals and pharmaceutical cleanrooms.
Activated Carbon Filter
HEPA handles particles. Activated carbon handles gases, odors, and VOCs (volatile organic compounds) — things like cooking smells, smoke, chemical fumes, and paint vapors.
The carbon has millions of microscopic pores that trap gas molecules as air passes through. One gram of activated carbon has a surface area of around 500 square meters.
We make activated carbon filters in granular and honeycomb formats, depending on the application.
Pre-Filter
The pre-filter sits in front of the HEPA layer. It catches large particles — hair, lint, big dust clumps — before they reach the finer filter layers. This extends the life of the HEPA filter significantly.
We manufacture washable and non-washable pre-filter variants.
UV-C Filter
UV-C light kills bacteria, viruses, and mold spores by breaking their DNA. It works alongside the HEPA filter, not instead of it.
Our UV-C modules are built with 254nm wavelength lamps — the most effective wavelength for microbial disinfection.
Ionizer Module
Ionizers release negatively charged ions that attach to airborne particles, making them heavy enough to fall out of the air or stick to surfaces. Some of our purifier models include an ionizer stage alongside HEPA and carbon filtration.
Why 99.97% Filtration Efficiency Matters
Most standard air filters catch particles above 10 microns. HEPA filters go down to 0.3 microns.
Here’s what that means in practice:
| Particle | Size | Caught by HEPA? |
|---|---|---|
| Human hair | 70 microns | Yes |
| Dust mite | 200 microns | Yes |
| Pollen | 10–100 microns | Yes |
| Mold spore | 1–20 microns | Yes |
| PM2.5 particle | 2.5 microns | Yes |
| Bacteria | 0.5–5 microns | Yes |
| Tobacco smoke | 0.3–0.5 microns | Yes (at 99.97%) |
| Virus (most) | 0.1–0.3 microns | Partially |
At 0.3 micron filtration, 99.97% of the particles that cause allergies, respiratory problems, and airborne infections are removed from the air.
For context, PM2.5 — the particle type most linked to lung disease and cardiovascular problems — is fully captured by HEPA filtration.
Our Manufacturing Process
Every filter and purifier we produce goes through a defined manufacturing and quality process..
Raw Material Sourcing
We source HEPA filter media from certified suppliers. The fiber density, fiber diameter, and packing ratio are checked before production starts. Substandard media doesn’t enter our production line.
Filter Construction
Filter frames are made from ABS plastic or galvanized steel depending on the application. The filter media is pleated to maximize surface area — more pleats mean more filtration area, which means better airflow and longer filter life.
Every pleat is formed at consistent angles using precision tooling. Hand-assembled pleating is inconsistent; ours is mechanized.
Sealing and Leak Testing
A HEPA filter with even a 0.01% leak fails its purpose. Every filter we manufacture is seal-tested using a photometer or particle counter. Any unit that shows leakage is rejected and reprocessed.
Final Quality Check
Finished filters are tested for:
- Particle capture efficiency (must meet or exceed rated grade)
- Pressure drop (airflow resistance within specification)
- Structural integrity (frame strength, media integrity)
- Dimensional accuracy (must fit target purifier models)
Filters that don’t pass all four checks don’t ship.
Our Room Air Purifier Range
We manufacture room air purifiers across three categories:
Residential Purifiers
Designed for bedrooms, living rooms, and small offices. Coverage area: 200 sq ft to 800 sq ft. These units run quietly — under 35 dB on low speed — so they don’t disturb sleep.
All residential models use our H13 HEPA + activated carbon + pre-filter combination as standard.
Commercial Purifiers
For offices, clinics, schools, and retail spaces. Coverage area: 800 sq ft to 3,000 sq ft. These units have higher CADR (Clean Air Delivery Rate) and are built for continuous 24×7 operation.
Available with HEPA + UV-C combination for environments where bacterial control is critical — dental clinics, physiotherapy centers, diagnostic labs.
Industrial Air Purifiers
For factories, warehouses, and manufacturing floors. Coverage area: 3,000 sq ft and above. These units handle high-dust environments, chemical vapors, and heavy particulate loads.
Built with H14 HEPA filters, multi-stage activated carbon beds, and heavy-duty metal housing.
Who Uses Our Products
Our products go to a wide range of buyers across India.
Hospitals and Clinics: ICUs, operation theaters, and isolation rooms require certified HEPA filtration. We supply filters for medical-grade air purifiers used across private hospitals and diagnostic centers.
Schools and Colleges: Indoor air quality directly affects concentration and health. Several schools in metro cities use our purifiers in classrooms and libraries.
Offices: Post-2020, many corporate offices have added air purifiers to their facilities checklist. We supply to IT parks, co-working spaces, and corporate campuses.
Factories: Industrial facilities dealing with dust, fumes, or chemical vapors use our industrial-grade filters for worker safety and regulatory compliance.
Homeowners: Families with children, elderly members, or anyone with asthma or allergies form a large part of our direct sales.
OEM Customers: Several air purifier brands source filters from us under their own label. We manufacture to their specifications and supply in bulk.
Why Buy from a Manufacturer, Not a Reseller?
When you buy from a reseller, you pay for their margin on top of the product cost. You also get limited technical support and no ability to customize.
When you buy directly from us:
Price: You pay factory-direct prices. On bulk orders, the savings are significant — typically 20–35% compared to retail pricing.
Customization: Need a filter in a non-standard size? A specific MERV or HEPA grade? A custom-branded unit? We handle it. Resellers can’t.
Technical Support: Our team knows the product completely. We can advise on which filter grade suits your application, how frequently to replace filters based on usage, and how to set up multi-unit installations.
Consistent Supply: We maintain production stock. Large or repeat orders don’t leave you waiting.
How to Choose the Right Air Purifier Filter
Three factors determine which filter is right for you:
Room Size
Every purifier and filter combination has a rated coverage area. Use a unit rated for at least your room’s square footage. If your room has high ceilings or poor sealing, go one size up.
Pollution Type
- Dust and allergens: HEPA filter is the primary requirement
- Cooking smells, smoke, chemical odors: Add an activated carbon filter
- Bacteria and viruses: Add UV-C
- Mixed pollution (most urban homes): HEPA + carbon combination is the practical choice
Filter Replacement Frequency
HEPA filters typically last 6–12 months with daily use. Carbon filters last 3–6 months. Pre-filters, if washable, can last 2–3 years.
In high-pollution cities like Delhi, Mumbai, and Kolkata, replace filters at the shorter end of the range. Running a clogged filter reduces efficiency and makes the purifier work harder.
We offer replacement filter subscriptions — pay once, receive replacement filters on schedule without having to remember.
Air Quality in Indian Cities: The Real Numbers
India has 9 of the world’s 10 most polluted cities by PM2.5 levels (IQAir 2023 data). Delhi’s annual average PM2.5 is around 92 µg/m³ — nearly 18x the WHO guideline of 5 µg/m³.
This isn’t a premium concern. It’s a health necessity.
An H13 HEPA air purifier running in a sealed room can reduce indoor PM2.5 levels by 80–90% within 30 minutes of operation.
For families with children or elderly members, the respiratory benefits are measurable — fewer infections, fewer allergy episodes, better sleep.
Certifications and Standards
Our filters and purifiers meet the following standards:
- ISO 9001:2015 — Quality management system certification
- EN 1822 — European standard for HEPA filter classification (the basis for H11–H14 grading)
- BIS compliance — Products comply with relevant Bureau of Indian Standards specifications
- HEPA grade verification — Each filter grade is third-party tested for particle capture efficiency
Certificates are available on request for institutional and government buyers.
Frequently Asked Questions
How often should I replace my room air purifier filter?
Every 6–12 months for residential use. In high-pollution cities or heavy-use environments, every 4–6 months. Check the filter color — if it’s visibly grey or dark, replace it regardless of time.
Which room air purifier is best for allergies?
A room air purifier with an H13 HEPA filter is the right choice for allergies. It captures 99.97% of pollen, dust mite debris, and pet dander — the 3 most common indoor allergens. Pair it with an activated carbon layer if you also deal with chemical smells or smoke.
Can a room air purifier remove PM2.5 particles?
Yes. PM2.5 particles are 2.5 microns in size. An H13 HEPA filter captures particles down to 0.3 microns at 99.97% efficiency, so PM2.5 is fully within its range. In a closed room, a correctly sized room air purifier can reduce indoor PM2.5 by 80–90% within 30 minutes.
Can I wash a room air purifier HEPA filter?
No. HEPA filters cannot be washed. Water damages the fiber structure and destroys filtration efficiency. Only pre-filters (where specified as washable) can be cleaned with water.
What does 99.97% filtration efficiency mean?
It means the filter captures 99.97 out of every 100 particles at the 0.3-micron size — the hardest size to capture. At larger and smaller particle sizes, HEPA efficiency is actually higher than 99.97%.
Do you supply replacement filters for other room air purifier brands?
Yes. We manufacture replacement filters compatible with most major brands sold in India. Send us your purifier model number and we’ll confirm compatibility.
What is your minimum order quantity for bulk orders?
MOQ varies by product. For filters, it’s typically 50 units. For purifiers, 10 units. Contact us for specific MOQ and pricing.
Do you do white-label or OEM manufacturing?
Yes. We manufacture under your brand name with your packaging. Several established brands in the air quality space source from us.
Conclusion
Indoor air quality is a real health issue, not a marketing category. The right purifier with the right filter — properly sized for your room — makes a measurable difference.
We’ve been manufacturing air purification products with a focus on filtration quality, honest specifications, and consistent supply. Every filter we ship is tested. Every purifier is built to run reliably.
If you’re a homeowner, a facilities manager, a hospital administrator, or a brand looking for a manufacturing partner — we can help.
Get in touch:
- Call or WhatsApp: 96255 55709
- Email: bafcustomercare@gmail.com
- Website: fiilters.com
- Factory: 197/3, Gali No. 3, Padam Nagar, Sarai Rohilla, Delhi, 110007, India
Request a quote, ask about bulk pricing, or send us your filter specifications. We’ll respond within 24 hours.