PURMED Xiaomi Smart Air Purifier 4 Compact compatible replacement filter, Designed for users who want to get maximum efficiency in small volume rooms It is a 3-layer hybrid filter system. Exclusive to the Mi 4 Compact model manufactured and compatible with this device only. When the correct filter is used, Xiaomi 4 Compact air purifier works both quieter and with higher performance; indoor air becomes more balanced and breathable.

To see all PURMED air purifier filters in one:
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Compatible Model and Usage Area

• Compatible device model: Xiaomi Smart Air Purifier Mi 4 Compact
• Uses: Bedroom, children's room, study, small halls, office rooms, examination/clinic rooms, small volume areas inside the workshop, etc.

The filter should only be used with the Mi 4 Compact . Other Xiaomi air purifier series (3H, 4 Lite, 4 PRO, Pro H, etc.); Improper filter use can lead to air leakage, low filtration efficiency and long-term may cause damage to the device .

3-Layer Filtration Structure

PURMED Xiaomi Smart Air Purifier 4 Compact filter, three layers in one body combines: pre-filter + activated carbon + True HEPA. Thus, both solid particles such as dust, lint and pollen, as well as odor and gaseous chemical pollutants, are targeted at the same time. Three-layer hybrid filtration provides a comprehensive It offers an air purification effect.

1) Primary filter layer – pre-filter

• It is located in the outer layer and traps relatively larger particles before they reach the main filter.
• Major pollutants such as hair, pet dander, fibers, dust pellets, pollen It is kept on this floor.
• Both the efficiency and lifespan of the inner HEPA and activated carbon layers are preserved; the total usage time of the filter is extended, the Xiaomi Compact 4 device draws air more easily.

2) Activated carbon layer – odor and chemical vapor control

• The activated carbon layer in the middle layer targets pollutants and offensive odors in the form of gases.
• Volatile organic compounds such as benzene, formaldehyde, toluene (VOC/TVOC), Cigarette and stove smoke, food vapor, oil odor, musty odor and pet odors are retained in this layer.
• Carbon granules with a large surface area attract these molecules into their pores, trapping them; Thus, the environment is fresh not only in terms of dust but also in terms of odor balance .

3) True HEPA layer – fine dust and allergen wall

• The True HEPA section, located in the innermost layer, targets ultra-small particles that are constantly circulating in the air.
• It captures solid particles as small as 0.3 microns with an efficiency of at least 99.97%.
• In this layer; pollen, mold spores, fungal spores, some bacteria, house dust mites, cigarette smoke particles, PM2.5 class fine dust and many asthma/allergy triggers are retained.
• Xiaomi Compact 4 filter for users with allergies, asthma and sensitive respiratory problems, It creates a barrier that significantly increases comfort .

Color Options and Differences

PURMED Xiaomi Smart Air Purifier 4 Compact filter, three different functional colors Available in the option: white, green, yellow. Pre-filter + activated carbon + The True HEPA structure is the same; The difference is in the type of problem being focused on.

White filter – balanced overall use

• It is the "standard/balanced" option for everyday use.
• It targets both dust and allergens as well as odors and chemical vapors in a balanced way.
• If there are no problems with too intense chemicals, excessive odor or excessive pet hair White filter can be preferred.

Green filter – focused on chemical pollutants and VOCs

• It has been developed for environments where toxic chemicals and VOCs are prominent.
• Painted, new furniture bought, frequent cleaning chemicals used, such as homes/offices close to industrial or high-traffic areas It excels in areas with high VOC/TVOC loads .
• With its reinforced activated carbon layer, it helps reduce chemical gases.

Yellow filter – pet-focused

• Optimized for homes with pets such as cats and dogs .
• Such as cat/dog hair, skin rash, food odor, cat litter odor, urine and feces odor It has a more intense working principle against pet-borne particles and odors.
• A yellow filter is especially recommended in homes with more than one animal.

What problems does this filter help with?

• Problems such as allergic rhinitis, asthma, dust and pollen allergy, It helps to reduce the density of trigger particles in the air.
• In smoking environments, with fine dust from smoke and soot It also contributes to the reduction of bad odor.
• It helps control pet dander, dandruff and odor.
• In common areas such as kitchen + living room, food and oil odors are faster It helps disperse.
• In interiors where paint, varnish, new furniture and cleaning chemicals are used, It helps to limit the chemical vapor and VOC load.

Technical Specifications (Summary)

• Product Name: Xiaomi Smart Air Purifier 4 Compact Compatible Replacement Filter – PURMED
• Filter Type: Hybrid (True HEPA + activated carbon + pre-filter)
• Filter structure: 3-layer filtration
• Size (H x W): Approx. 17.4 × 17.4 cm
• Color options: White (general use), green (chemical/VOC focused), yellow (pet-oriented)
• Compatible model: Mi 4 Compact
• Product Group: Air purifier filters
• Package Included: 1 Piece Filter
• Product Type: Disposable; not cleanable or washable.
• Recommended usage time: Although it depends on the environmental conditions average 8–12 months.

Lifespan and Replacement Period

The Xiaomi Compact 4 filter traps pollutants in its pores while it is in use. After a point, these pores fill up, air passage becomes difficult and filtration efficiency decreases. In this case, the device is put under more strain, It draws more energy and can operate with higher noise. For this reason, the filter It must be renewed at regular intervals.

Duration of use; outdoor air pollution, indoor smoking, number of pets and Although it varies depending on factors such as how many hours a day the device works In typical home use, it is in the range of 8–12 months .

Here are the main signs that the filter needs to be replaced:

• Weakening of the air outlet even if the device is operating at a high level
• A persistent bad odor in the room of unknown origin
• Dust accumulation on furniture and surfaces faster than normal
• When you open the filter compartment, you see a visible dense layer of dirt and particles

When changing, the device must be turned off and unplugged. Vacuuming or washing HEPA paper with water can disrupt its delicate fiber structure. It reduces filtration reliability. A filter that has reached the end of its useful life forcibly "clean and reuse"; It both deteriorates the air quality and damages the motor of the device. It tires you unnecessarily. Using masks and gloves during filter replacement, Inhalation of bacteria, viruses, mold spores and harmful particles that may be attached to the filter It is important in terms of reducing it.

Compliance and Brand Note

This product is not the original OEM filter manufactured by Xiaomi. To be compatible with the Xiaomi Smart Air Purifier 4 Compact air purifier It is a high-quality replacement filter designed by the brand name PURMED . Xiaomi brand and model names mentioned in the product description are only It is used to show compatibility . The product sold, It is a registered PURMED filter branded product.

Using the correct filter for your Xiaomi Smart Air Purifier 4 Compact; It directly affects the quality of the air you breathe and your device will last for years. It helps it work efficiently and reliably . The PURMED Compact 4 filter, with its three-layer structure and advanced activated carbon support, Designed to make a big difference in air quality , even in small rooms It is a professional solution.

Related PURMED Filter Models (Internal Link Recommendation)

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