Replacing The Dust Filter / Deodorizing Filter; Replacement Interval - Hitachi EP-PF120J Instruction Manual

Replacing the Dust Filter / Deodorizing Filter

Replacement Interval


The fi lter is disposable. The deodorizing performance of the fi lter decreases with use.
The standard life of a dust fi lter and a deodorizing fi lter is approximately 10 years as determined by the Japan
Electrical Manufacturers' Association.

A test according to JEM1467(Japan Electrical Manufacturers' Association) was conducted. If 5 cigarettes are
smoked per day:
[Dust Filter] Number of years is up to the point the air purifying time takes twice as long as when the fi lter was
new.
[Deodorizing Filter] Number of years is up to the point the deodorizing rate (ammonia, acetaldehyde, and acetic
* This is only a guide. It differs from the actual use in an average household.

Replace the deodorizing fi lter when it becomes diffi cult to remove odor.

Depending on the location and usage, it may also be shortened. If it becomes diffi cult to remove dust or
odor, replace the fi lter immediately. Otherwise, the fi lter may generate odors.

The following cases will shorten the life of the fi lter:

When the purifi er takes in oily smoke, carbon substances (soot), etc. or when the smell of new building materials
remains after the construction or remodeling of a building

When used in stores, such as in coffee shops, game parlors, barber shops, beauty parlors, hotels, inns, and of-
fi ces

When used in places with strong smells such as cigarettes, barbecue, aroma oils, or air fresheners

When the purifi er takes in combustion gases generated by heating appliances

When the purifi er takes in solvents such as paints, adhesives, etc.

When used in dusty locations near roads subject to heavy traffi c.
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acid usually contained in tobacco) becomes half as when the fi lter was new.
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