Room air treatment system
First Claim
1. A room air treatment system comprising:
- a cabinet having an air inlet and an air outlet;
a large particle prefilter located generally at said inlet;
carbon filter means located in said cabinet downstream from said prefilter for absorbing odorous and other chemical gases;
blower means located in said cabinet downstream from said carbon filter means for drawing air through said prefilter and said carbon filter means;
fine particle filter means located in said cabinet downstream from said blower means in air flow communication therewith whereby said blower means forces air through said fine particle filter means; and
a final filter comprising a combination carbon filter and fine particle filter whereby odorous and other chemical gases and particles passing through or escaping earlier entrapment in said fine particle filter means are entrapped by said final filter.
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Accused Products
Abstract
A room air treatment system in which air is drawn through a large particle prefilter, a first carbon filter, a second dual honeycomb matrix carbon filter in which the honeycomb cells in adjacent matrices are offset relative to one another, a blower mounted on vibration isolation mounts and is expelled by the blower into a plenum from when it exits upwardly through a fine particle HEPA filter and finally out through a final filter which is a combination fine particle filter and carbon filter. A filter change warning system is provided which includes a 3500 hour filter change indicator, an every 7000 hour filter change indictor, a back-up warning indicator, a mute button for muting the warning indicator and a recycle system for restarting the hour count.
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Citations
35 Claims
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1. A room air treatment system comprising:
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a cabinet having an air inlet and an air outlet; a large particle prefilter located generally at said inlet; carbon filter means located in said cabinet downstream from said prefilter for absorbing odorous and other chemical gases; blower means located in said cabinet downstream from said carbon filter means for drawing air through said prefilter and said carbon filter means; fine particle filter means located in said cabinet downstream from said blower means in air flow communication therewith whereby said blower means forces air through said fine particle filter means; and a final filter comprising a combination carbon filter and fine particle filter whereby odorous and other chemical gases and particles passing through or escaping earlier entrapment in said fine particle filter means are entrapped by said final filter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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34. A room air treatment system comprising:
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a cabinet; air filter means; blower means, said blower means being mounted in said cabinet through vibration absorbing isolation mounts, said blower means being secured to said mounts and said mounts engaging said cabinet but holding said blower means spaced from said cabinet whereby vibration generated by said blower means tend to be absorbed by said mounts rather than transmitted to said cabinet; said cabinet being divided into a front compartment and a rear compartment;
said cabinet including an air inlet opening into said rear compartment and an air outlet opening out of said front compartment;said air filter means including a large particle prefilter, and carbon filter means, located along with said blower means in said rear compartment, said blower means being located generally at the bottom of said rear compartment; said blower means opening into and communicating with a plenum located in the bottom of said front compartment; and said air filter means including a fine particle filter means positioned above said plenum whereby air exiting said blower means is forced to turn upwardly in said plenum before entering said fine particle filter means.
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35. A room air treatment system comprising:
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a cabinet including an air inlet and an air outlet; carbon filter means seated within said air inlet and prefilter means located over said air inlet; a fabric securing strip on one of said cabinet and prefilter having a plurality of projecting loops and a fabric securing strip on the other thereof having a plurality of loop engaging projections whereby said prefilter can be readily attached to and removed from said air treatment system by engaging or disengaging said loops and loop engaging projections, said prefilter holding said carbon filter means in position within said air inlet when said prefilter is secured to said cabinet.
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Specification