In an occupied building, what the vacuum puts back into the air matters as much as what it picks up. This washable HEPA filter is the final exhaust stage on Sanitaire SC9150 and SC9180 commercial uprights, capturing 99.97 percent of particles down to 0.3 microns before air leaves the machine. Because it is washable, one filter serves through many cleaning cycles instead of being thrown away each month.
Built for
- Cleaning crews working occupied offices, clinics and classrooms during business hours
- Facilities with written indoor air quality or green cleaning requirements
- Schools and daycare centers where dust and allergen carryover is a standing complaint
- Building service contractors maintaining a fleet of SC9150 and SC9180 uprights
- Anyone whose machine has started smelling dusty or blowing fine grit from the exhaust
Fitment and equivalents
This exhaust HEPA filter fits Sanitaire SC9150 and SC9180 series commercial uprights and is cross-referenced to Sanitaire part numbers 68910, 68910-4, 78035, 78442A and 78442A-2. Related listings also cite SC9120A, SC9181, C4910A and EP9110A machines. Check the number printed on the old filter frame or the machine model plate if you are working across a mixed fleet.
Why the exhaust filter is the one people forget
- The bag catches bulk debris, but the HEPA stage is what stops fine respirable dust
- A blinded filter restricts airflow, which makes the motor run hotter and shortens its life
- Filtration complaints usually show up as odor or visible dust on furniture, not as lost suction
- Washable construction means the recurring cost is time, not a new filter every cycle
Washing and replacement schedule
Rinse the filter with cool water from the clean side outward, never with detergent or a pressure washer, and let it dry completely before refitting. Installing a damp HEPA filter is the fastest way to grow odor inside the machine. Manufacturer and trade guidance for commercial uprights lands between six and twelve months for outright replacement depending on hours, with heavy daily route use at the shorter end. Replace rather than wash again once the media is torn, permanently discolored, or the frame no longer seats squarely in its housing.
Frequently asked questions
Which Sanitaire models does this filter fit?
It fits SC9150 and SC9180 series commercial uprights and cross-references part numbers 68910, 68910-4, 78035, 78442A and 78442A-2.
How do I wash it correctly?
Rinse with cool water from the clean side outward, without detergent or a pressure washer, and let it dry completely before refitting. A damp HEPA filter will develop odor inside the machine.
How often should it be replaced?
Guidance for commercial uprights generally runs between six and twelve months depending on hours, with heavy daily route use at the shorter end.
What does 99.97 percent at 0.3 microns actually mean?
It is the HEPA standard: the media captures 99.97 percent of particles at the hardest-to-catch particle size, which is what keeps fine respirable dust from passing through the exhaust.
Can a dirty filter damage the vacuum?
A blinded filter restricts airflow, which makes the motor run hotter than designed and shortens its service life.
Discount Cleaning Products is an authorized dealer supplying commercial cleaning contractors, facility managers and in-house maintenance teams across the United States. Our US-based staff can confirm fit against your model and serial number before you order, and we stock the companion wear parts most crews replace at the same time.
