Biostatic filter
AssigneeNovapharm Research (Australia) Pty Ltd
InventorSteven Kritzler
Life of this patent
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Abstract
The invention relates to an air filter including a composition which has a biostatic or biocidal agent adapted to migrate through particulates accumulating in use on the filter. The biocidal agent may have bacteriostatic and/or fungistatic properties and may optionally include a humectant, a surfactant or rheological additive. The invention also relates to compositions for treating filters and a method of reducing airborne contaminants in air.
Claims20
An air filter including a composition, said composition including a biostatic or biocidal agent wherein the agent is adapted to migrate through particulates accumulating in use on the filter.
A composition for application to an air filter, said composition including:
- a water soluble biocidal or biostatic agent,
- and a humectant
- whereby the biocidal or biostatic agent is adapted to migrate through a filtrate accumulating, in use, on a surface of the air filter.
A method of treating a filtrate on a filter including the step of adding to the filter or to the filtrate a biocidal or biostatic agent adapted to migrate through the filtrate.
A method of reducing airborne contaminants in air including the step of:
- treating a filter with an biocidal or biostatic agent;
- passing air through the filter whereby to accumulate contaminants as a filtrate on the filter;
- and
- allowing the biocide to migrate throughout the filtrate.
Dependencies are inferred from the claim text.