1. Formaldehyde removal dedicated filter core, with an activated carbon layer using modified activated carbon + graphene composite technology, increasing the formaldehyde adsorption capacity by 80% and converting it into harmless substances after adsorption to avoid secondary pollution. The HEPA layer assists in filtering construction dust and paint particles. The filter adopts a layered design, with the activated carbon layer being replaceable separately, reducing maintenance costs. It is suitable for air purifiers in newly renovated houses, with a thickness of 40mm and a large contact area, removing formaldehyde three times faster than ordinary filters, quickly creating a safe indoor environment for living.

2.High-density pre-filter, made of 500g/㎡ polyester fiber material, 30% denser than ordinary pre-filters. It can filter hair, cotton fluff, and large dust particles, protecting the HEPA filter from clogging and extending the overall filter core's lifespan. It is washable, and the filtration efficiency remains unchanged after cleaning. Compatible with the pre-filter layer of various purifiers, it can be replaced separately at a low cost, making it a "durable pre-filter guardian" for household purifiers.

3.Specialized filter for express delivery stations, designed to address dust and odors from packaging. The pre-filter layer filters paper box debris and dust, while the HEPA layer filters fine particles. The activated carbon layer removes the ink and glue odors from packaging. The filter is dirt-resistant and impact-resistant, compatible with large purifiers in express delivery stations. It has low air resistance and does not affect equipment operation. Continuous purification can improve air quality in the station and reduce the harm of dust to staff.

4.37 Specialized filter for photography studios, designed to handle photography dust and background cloth debris. The HEPA layer filters out fine dust, preventing it from adhering to lenses and props. The activated carbon layer removes formaldehyde (from new construction) and prop odors in the studio. The filter operates silently, not affecting audio recording during photography. It is suitable for small purifiers in studios and lasts up to 4 months, helping photographers create a clean shooting environment.