1.Whole-house purification filter for large apartments, with an ultra-large folded area of 5 square meters, suitable for central purifiers in large apartments. The HEPA layer filters out particles throughout the house, while the activated carbon layer absorbs formaldehyde and odors. It has low air resistance and does not affect the air volume throughout the house. The filter lasts up to 6 months, with a low maintenance frequency, creating a clean air environment for large apartment families without the need for multiple purifiers. 

2. Specialized filter for flower shops, designed to remove pollen and flower mud odors. The HEPA layer filters out pollen (to prevent staff from allergies), and the activated carbon layer adsorbs the smell of flower mud and nutrient solution. The filter operates quietly and does not affect the atmosphere of the flower shop. It is compatible with the desktop air purifier in the flower shop, with a small size and placed beside the flower stand. Continuous operation can reduce the spread of pollen and protect the respiratory health of staff. 

3.Specialized growth filter for children's rooms in families, which can adjust the filtration intensity according to the child's age (by replacing different HEPA levels). H13 level is used for infants to prevent allergens, and H12 level is used for school-age children to balance purification and air flow. The activated carbon layer adsorbs the smell of toys and snacks. It is compatible with the air purifier in the children's room and provides customized clean air for children's growth.

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.