HEPA Filter for Johnny Vac Hydrogen Canister Vacuum This replacement HEPA filter is engineered for optimal performance with Johnny Vac Hydrogen canister vacuums. The high-efficiency particulate air filtration captures 99.97% of particles as small as 0.3 microns, including dust, allergens, and microscopic debris. Designed for extended durability, this filter maintains consistent suction power and air quality throughout its service life. Regular replacement ensures your vacuum operates at peak efficiency and protects indoor air quality. Compatible exclusively with Johnny Vac Hydrogen models. Replace when filter shows visible dust accumulation or reduced suction performance for best results.