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IND MARLUBE
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IND MARLUBE
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Priority to ES99778UpriorityCriticalpatent/ES99778Y/en
Publication of ES99778UpublicationCriticalpatent/ES99778U/en
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Publication of ES99778YpublicationCriticalpatent/ES99778Y/en
Apparatus Associated With Microorganisms And Enzymes
(AREA)
Abstract
"CARTE-FILTER, FOR WORK OF ALL KINDS, ESPECIALLY THE MINES" which is characterized by an interior cavity comprising the respiratory tract and on the concave part, has a spongy filter body whose outline has a thread pitch for housing a perforated lid constituting a filter; said mask diametrically opposed, has two valves mounted, one of aspiration through which the injected air is introduced, provided by a regulating key, and, the opposite valve without regulation, through which the air exits; as a complement, for its laterals it has an adjuster in the form of an elastic strap or tensioner. (Machine-translation by Google Translate, not legally binding)