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Heavy metals

Metals with a high density.

HEPA

High Efficiency Particulate Arrestance Filter or also High Efficiency Particulate Air Filter

HEPA filter

Filter for finest dust and aerosols

High Containment

Entire enclosures of plants or plant components

high-efficiency submicron particulate air filter

Filter plant with filter elements for suspended matters.

High-performance filter

Filter for high dust concentration and difficult process conditions

High-pressure filter

cf. pressure tank

Hot gas filter

Infastaub defines hot gas filter from a temperature of 120 °C

Housing stability

Static design of the filter housing

HPAPI

High potency active pharmaceutical ingredients

Hybride mixture

Mixture of simultaneously arising comustible dusts and flammable substances in the form of gases.

Hydrolysis

splitting of a chemical compound by reaction with water.

Hydrophobic

Water-repellent

Hygiene

Entirety of all efforts and measurements for prevention of harms to healths and diseases

Hygroscopic

Properties of substances in order to absorb moisture from the environment.