New Variants And Public Health Challenges of COVID-19 in 2025

According to data from the Centre for Health Protection of the Department of Health of Hong Kong, since mid-March 2025, the activity level of the novel coronavirus in the community has continued to rise, reaching the highest level in six months. Sewage monitoring data shows that the prevalence of the XDV variant strain has increased. XDV is a variant strain related to JN.1, and the existing COVID-19 vaccines can still effectively prevent this variant strain. As many citizens have been infected or vaccinated for more than half a year since their last infection, experts have called on the public to continue getting booster shots.

At present, the COVID-19 situation in Hong Kong and the Chinese mainland is showing a rebound trend, mainly due to the spread of new variants, the weakened protective efficacy of vaccines, and the co-prevalence of multiple respiratory viruses. The public should continue to follow the epidemic situation, maintain good personal hygiene habits, get vaccinated in time and enhance their own protection. 

Ok! Let me briefly sort out the connection between the novel coronavirus (COVID19) and the filter element industry for you, and explain why the filter element industry was affected during the epidemic, and even the demand in some niche markets increased sharply as a result. 

SARSCOV2 associated with the filter element industry

Air Quality and virus transmission

 The novel coronavirus is mainly transmitted through droplets and aerosols. Aerosols are ultrafine particles suspended in the air, with diameters typically ranging from 0.1 to 5 micrometers, while the novel coronavirus itself is approximately 0.06 to 0.14 micrometers. But it often floats and spreads by adhering to larger aerosols or dust particles.

This makes  air filtration products  important, especially:

Hospitals, nucleic acid testing sites, isolation areas → Highefficiency air filters (HEPA, ULPA)

Household air purifier → Highefficiency filter

Air conditioning system → HVAC filter element (MERV grade 13 and above can effectively filter virus aerosols)

Masks and Respiratory protection

After the outbreak of the epidemic, the demand for masks and respirator filters soared:

N95 and KN95 masks → Contain meltblown filter material (can filter out over 95% of 0.3micron particles)

Medical masks, industrial protective face shields → equipped with dedicated filter cores (antivirus, antidroplet)

Many filter element manufacturers switched to and expanded mask and respirator filter materials during the pandemic.

Environmental disinfection and cleaning equipment

 During the COVID19 pandemic, the frequency of indoor environmental disinfection has increased, leading to a rise in the demand for filter cores in household appliances such as vacuum cleaners, sweeping robots, and air purifiers.

Prevent secondary dust and the spread of bacterial aerosol

In key areas such as medical facilities, hotels, office buildings and schools, the filter elements of cleaning equipment must be replaced regularly to ensure filtration efficiency

Medical, Pharmaceutical, biological laboratory

Under the pandemic, the demand for highefficiency air filters and cleanroom filtration equipment in pharmaceutical and vaccine research laboratories has increased significantly, ensuring a dustfree and sterile environment and preventing virus leakage.

 Filter element industry affected

The filter element market is stable, mainly applied in home appliances, industry, and automobiles. The demand for medical, respiratory protection, and air purification filter elements has soared, and manufacturers are changing production lines and expanding production. With the improvement of home health awareness, the markets for air purification, household vacuum cleaners, and automotive purification filter elements continue to grow

Future Trends

 After the epidemic, although epidemic prevention and control has become normalized, people's concern for air health and environmental hygiene has continued to increase:

Air purifiers and vacuum cleaning robot filters remain bestselling products

The demand for medical and industrial masks and respirator filters remains stable

The upgrading and transformation of HVAC system filters has become a new trend (such as MERV level 13 and above)

We serve home appliances filter accessories including Vacuum Cleaner Filters, Vacuum Cleaner Parts Replacement, Air Purifier Filters, Humidifier Filters, Cooker Hood Filters etc. Also we provide HVAC Filters, Automotive Filters, Industrial Filters, Medical Filters and other filters etc.

 *Products can be customized, not limited to the ones listed on this website.

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