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What are the dangers of not replacing the purifier filter for a long time?

by RenYi 28 Jul 2025 0 Comments
Nanjing TC Tech Co.,Ltd.

The filter element of the purifier is the core component to maintain clean air. If it is not replaced for a long time, it will bring many hazards, not only affecting the purification effect, but also may have a negative impact on health and equipment. The following are the specific hazards:

1. Decreased air quality

The filtering effect is greatly reduced: After the filter element is saturated with adsorption, it cannot effectively intercept pollutants such as dust, PM2.5, pollen, and odor in the air, making the purifier "useless".

Secondary pollution: Dirty filter elements may breed microorganisms such as bacteria and mold, and become a new source of pollution, affecting the indoor environment.

2. Increased health risks

Affected respiratory system: Pollutants in the air cannot be filtered, which can easily induce coughing, rhinitis, asthma and other problems, especially for children, the elderly and sensitive people.

Harmful gas residues: The long-term presence of volatile organic compounds such as formaldehyde and benzene can cause damage to the human nervous system and internal organs.

3. Loss of purifier performance

Reduced air volume: When the filter is clogged, ventilation is poor, the purifier wind speed decreases, and the overall purification efficiency is affected.

Increased motor load: To maintain output, the equipment needs to operate at a higher power, which may cause motor damage or shorten its life in the long run.

Increased operating noise: Clogged filters will increase the fan load and the noise will increase accordingly.

4. Increased cost of use

• Increased energy consumption: The purification effect decreases, the equipment needs to run for a long time to be effective, and the electricity cost increases.

Delayed replacement leads to maintenance: When the filter element is severely clogged, it may damage the entire machine components, increasing the cost of maintenance or replacement.

Air Purifier Filter

Recommended filter replacement cycle

Filter Type

Recommended replacement cycle

HEPA filter

Replace every 6-12 months

Activated carbon filter

Replace every 3-6 months

Primary filter (washable)

Clean once a month and reuse

 

It is recommended to flexibly adjust the replacement time according to the frequency of use and environment (such as whether there is smoking, the presence of pets, areas with severe air pollution, etc.) to ensure the long-term and stable operation of the purifier.

Nanjing TC Tech Co.,Ltd. is specialized in the development, research and design of advanced environmental technology and related products. With our highly trained R&D staff and customer service, our company is able to offer various filtration products and designs, as well as comprehensive services to customers all over the world.

Our Air Purifier Filter are Available in a Variety of Shapes and Materials, Depending on the Customer's Specifications and Requirements.

Our R&D Department Has Been Actively Developing New Air and Humidifier Filters for Residential, Commercial and Industrial Use.

Contact US: https://technjtc.com/pages/contact-us

Email: office@njtctech.com

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