High-efficiency filtration using HEPA technology (High Efficiency Particulate Air), capturing 99.97% of fine dust with a diameter of 0.3 micrometers, ensuring the exhaust air stays clean. Washable design: The vacuum filter can be cleaned regularly. Simply rinse with water and air dry, reducing replacement frequency and maintenance costs. Although washable, an annual replacement is recommended for optimal performance. Long-lasting use: Filters offer a long lifespan and can last about 6 months to a year or longer under normal use. Exact time varies with usage frequency and environment. Easy replacement: Filter changes for handheld vacuums are straightforward and can be performed by the user without special tools. Use cases: Ideal for homes with pets to reduce pet hair and dander; suitable for allergy-aware cleaning to lower dust exposure; practical for car interiors and other small spaces where frequent maintenance is beneficial.