1.Filter for office use, designed to address printer dust, secondhand smoke, and office odors. The HEPA layer filters toner particles and PM2.5, while the activated carbon layer is infused with tea polyphenols to neutralize harmful substances in secondhand smoke and remove coffee and snack odors. The filter is compatible with desktop and small commercial air purifiers and features a quiet design that does not disturb the office environment. It has a lifespan of up to 3 months, being more durable than ordinary filters, and creates a refreshing breathing space for office workers.

2. Specialized filter for express delivery sorting centers, featuring an industrial-grade coarse + HEPA composite structure. It intercepts dust from packaging and plastic debris, with the activated carbon layer absorbing packaging odors. The filter frame is made of metal, resistant to pressure and deformation. It is suitable for large purifiers in sorting centers, with high air volume and fast purification speed. Continuous operation can reduce dust concentration in the workshop, protecting the health of sorting workers. Feature 

3.Specialized dust-proof filter for construction site dormitories, featuring a coarse + HEPA composite structure. It intercepts construction site sand and cement dust, and the activated carbon layer adsorbs dormitory odors and sweat smells. The filter frame is made of wear-resistant material, resistant to impact and tearing. It is compatible with small air purifiers in construction site dormitories, with a lifespan of up to 3 months, being more dirt-resistant than ordinary filters, improving the living environment of construction site dormitories.

4.Specialized filter for nursing home cafeterias, designed to handle kitchen odors and food smells. The activated carbon layer is infused with natural fruit and vegetable extracts, removing odors while releasing a light fragrance. The HEPA layer filters out kitchen dust and food debris. The filter is heat-resistant and corrosion-resistant, suitable for wall-mounted purifiers in cafeterias. Continuous operation can improve air quality in the cafeteria and reduce the irritation of kitchen odors to the elderly.