PURMED Xiaomi Smart Air Purifier 4 PRO Compatible True HEPA+ Activated Carbon Air Purifier Filter

PURMED Xiaomi Smart Air Purifier 4 PRO compatible replacement filter, For Xiaomi Smart Air Purifier 4 PRO (Mi Air Purifier 4 PRO) model It is a specially developed 3-layer hybrid filter system. By combining the pre-filter + True HEPA + activated carbon layers in a one-piece cylindrical body; solid particles such as dust, pollen, mold, bacteria, PM2.5 fine dust, as well as It simultaneously targets chemical vapors such as smoke, cooking odor, VOC/TVOC .

Thanks to the integrated RFID chip on the filter, filter life It can be tracked by the Xiaomi Smart Air Purifier 4 PRO device; so that filter replacement time is managed more accurately and safely.

You can visit the store page to see all PURMED air purifier filter models :
PURMED Filter Store – Xiaomi, Philips, Dyson, Levoit, Winix Compatible True HEPA Filters

Compatible Xiaomi Model and Important Note

• Compatible model: Xiaomi Smart Air Purifier 4 PRO (Mi Air Purifier 4 PRO)
• Incompatible models: Xiaomi 4, 4 Lite, 4 Compact, Pro H, 3H, 2S and all other Xiaomi series

Using the wrong model filter; the filter does not fit properly in its housing, air leaks, reduced filtration efficiency and in the long term may cause the device to operate more noisily and with difficulty . This product is designed for use with the Xiaomi Smart Air Purifier 4 PRO model only It is a PURMED branded replacement filter.

Size and Design

The Xiaomi 4 PRO compatible PURMED filter is exactly compatible with the original filter dimensions of the device:

• Height: Approx. 35.8 cm
• Width/Diameter: Approx. 22.5 cm
• Cylindrical housing fully compatible with 360° air intake design

Thanks to these dimensions, the filter fits snugly into the Xiaomi 4 PRO air ducts; It supports the operation of the device without restricting air circulation and creating extra noise .

3-Layer Filtration System

The PURMED filter designed for the Xiaomi Air Purifier 4 PRO uses a three-stage hybrid structure:

1) Pre-filter layer – Large particulate barrier

• Pre-filter on the outer layer; hair, pet dander, textile fibers, dust balls, It catches large pieces of pollen clumps and house dust mites at the initial stage.
• Prevents premature clogging of the inner True HEPA and activated carbon layers; extends the total service life of the filter.
• Efficient operation of the pre-filter allows the motor and fan group of the device to draw air more easily. and contributes to quieter operation .

2) True HEPA layer – Fine dust and allergen wall

• The True HEPA layer in the middle section will not be visible to the naked eye It targets particles as small as
• It will be able to capture particles of 0.3 microns in size at least 99.97% It is produced with precision.
• Pollen, mold spores, fungal spores, bacteria, cigarette smoke particles, house dust mite residues, PM2.5 fine dusts and many asthma / allergy triggers It is kept in this layer.
• For users with allergic rhinitis, dust and pollen allergies, or asthma It provides a noticeable increase in comfort in indoor air quality.

3) Activated carbon layer – Odor and chemical gas filter

• The dense section of activated carbon in the innermost layer targets pollutants in the form of gases and odors.
• Volatile organic compounds (VOC / TVOC) such as ammonia, benzene, formaldehyde, food and frying odors, cigarette and stove smoke, vapors released from cleaning chemicals, gaseous pollutants such as the smell of dampness are trapped in the porous carbon structure.
• The air in the environment is neutral and fresh not only in terms of particles but also in terms of odor balance It helps to become a reality.
• It offers noticeable relief, especially in areas where smoking or strong odor problems are experienced .

Color Options and Differences Between Them

PURMED Xiaomi Smart Air Purifier 4 PRO filter; gray, purple and green It is available in three different versions. Same basic structure in all three versions (pre-filter + True HEPA + activated carbon); however, the type of pollution they focus on is different.

Grey filter – Allergen and dust-oriented use

• It is designed for homes/offices with high dust and allergen loads.
• It targets fine particles from house dust, pollen, mold spores, mite residues and smoke.
• For users with allergic rhinitis, pollen allergy, dust sensitivity or asthma problems It is the most balanced and general-purpose solution.

Purple filter – Pet-oriented use

• Optimized for environments with pets such as cats and dogs.
• It helps reduce the concentration of feathers, lint dust, skin rashes, and animal-specific allergens in the air.
• It helps balance food, cat litter and animal odors.
• Especially in homes with more than one pet and intense shedding periods. purple Xiaomi 4 PRO filter can be preferred.

Green filter – Chemical and VOC / smoke oriented use

• It is designed for areas with high chemical and VOC loads.
• Painted, new furniture is used, cleaning chemicals are used frequently, or Ideal for homes and offices close to heavy traffic / industrial areas.
• Thanks to its advanced activated carbon content, volatile organic compounds such as formaldehyde, toluene and benzene and helps reduce many toxic gases.
• It is extra effective on smoke odor and chemical vapor load, especially in smoking environments.

In Which Situations Does It Benefit?

This PURMED filter, compatible with Xiaomi Smart Air Purifier 4 PRO, is a powerful helper in the following scenarios:

• In users with allergy and asthma complaints; such as pollen, mold, mite, fine dust, smoke It helps reduce trigger particles.
• In environments where smoking, stoves or fireplaces are used; both smoke particles and odor It helps to keep it under control.
• In houses with pets; It contributes to the reduction of hair, dander, skin rash and animal odors.
• In the kitchen and open-plan living rooms; It helps food and oil odors dissipate faster.
• In newly painted, newly furnished or renovated environments; It supports the reduction of VOC and chemical vapor load.

Technical Specifications (Summary)

• Product Name: Xiaomi Smart Air Purifier 4 PRO Filter – PURMED
• Filter Type: Hybrid (True HEPA + activated carbon + pre-filter)
• Filter structure: 3-layer filtration
• Size: Approx. 35.8 cm high x 22.5 cm wide (cylindrical design)
• Color options: Grey (allergen), purple (pet), green (chemical/VOC)
• Additional Feature: RFID chip smart tracking (helps track filter usage time by device)
• Compatible model: Xiaomi Smart Air Purifier 4 PRO / Mi Air Purifier 4 PRO
• Package Included: 1 Piece Replacement Filter
• Product Type: Disposable; It is not washable or cleanable.
• Recommended usage time: Average 8–12 months (may vary depending on environmental pollution and usage intensity)

Lifespan and Filter Replacement

The HEPA filter traps pollutants in the ambient air in its pores throughout the usage period. Over time, these pores fill up and air passage becomes difficult. From this point on:

• Filtration efficiency decreases,
• The device has to work by consuming more power,
• Both air quality and the long-term health of the appliance are negatively affected.

PURMED is in standard conditions for this Xiaomi 4 PRO compatible filter He recommends a change every 8-12 months . But:

• If outdoor air pollution is high,
• If smoking is done at home,
• If there is more than one pet,
• If the device is running at a high level for long hours a day

The filter may reach saturation sooner and the replacement time may be shortened.

Typical signs that the filter needs to be replaced:

• Significant weakening of the air outlet even when the device is operating at high
• A persistent odor of unknown origin in the room
• Dust or lint buildup on furniture and surfaces faster than usual
• When you look at the filter surface, you see a dense layer of dirt and particles

During replacement, the device must be turned off and unplugged. Using a mask and gloves when removing the used filter, It is important to reduce the inhalation of harmful particles such as dust, bacteria, mold spores, etc. attached to the filter.

Vacuuming HEPA paper with a broom or washing it with water can disrupt the delicate fiber structure. It significantly reduces filtration reliability. A filter that has reached saturation trying to "clean and reuse"; It both deteriorates air quality and It tires the motor of your Xiaomi Smart Air Purifier 4 PRO unnecessarily. Therefore, when the filter reaches saturation, it must be replaced with a new PURMED 4 PRO filter .

Compliance and Brand Note

This product is not the original OEM filter manufactured by Xiaomi. To be compatible with Xiaomi Smart Air Purifier 4 PRO air purifier It is a high-quality replacement filter designed by the brand PURMED . Xiaomi brand and model names mentioned in the product description are only used to demonstrate compatibility ; Filters for sale registered PURMED filter branded products.

Your Xiaomi Smart Air Purifier 4 PRO will keep both the air quality and if you want to maintain its long-lasting performance, it is critical to use the right filter at the right time. PURMED Xiaomi 4 PRO filter; 3-layer hybrid structure, high-efficiency True HEPA technology, With advanced activated carbon layer and RFID chip support, for a cleaner and fresher indoor environment with every puff professional solution .

Internal Link Suggestions (SEO Boosting)

You can boost SEO performance by cross-linking this product page with other PURMED air purifier filter models:

• PURMED – Winix Zero/P300 compatible True HEPA + activated carbon filter set
• PURMED – Winix Zero Pro, Zero N, Zero Compact compatible filters
• PURMED – Levoit Core Mini / Core 200 / Core 300 – 300S compatible HEPA filters
• PURMED – Dyson DP01 / DP03 / HP01 / HP02 compatible 3-layer filter
• PURMED – Philips 800i, 1000, 2000i, 3000i, 3200, 8000 Series compatible HEPA + carbon filters

You can use the general store link to see all models and stock status from a single screen:
PURMED Air Purifier Filters – All Xiaomi, Philips, Dyson, Levoit, and Winix Compatible Models