Three-quarter view of dark-blue negative-pressure HEPA filtration unit with black intake and exhaust collar

FFU 및 터미널 공기 정화 장비

음압 HEPA 여과 유닛

A rugged portable negative-air machine that pulls contaminated room air through staged filters and exhausts the HEPA-cleaned airflow through a sealed duct connection.

Containment Exhaust Flow
Upstream Prefilter Protection
Variable Negative Air Volume
Sealed Exhaust Collar

견적 요청 제품 찾아보기

상품 소개

The negative-pressure HEPA filtration unit places the prefilter and HEPA cassette upstream of a variable-speed centrifugal blower. Contaminated room air enters the guarded intake, is filtered under negative pressure and then exits through a round exhaust collar for connection outside the contained space or to an approved return path. A differential gauge indicates filter resistance, and gasketed access panels maintain the dirty-side pressure boundary. When operated without an exhaust duct, the same unit functions as a recirculating air scrubber but does not create room negative pressure.

주요 기능

Upstream HEPA placement keeps the filter compartment and duct connection under negative pressure.

A sealed round outlet accepts flexible ducting for controlled exhaust from the contained room.

Variable blower speed supports pressure adjustment as room leakage and filter resistance change.

Separate coarse and intermediate filters protect the HEPA stage during high-dust work.

고객 제품 관심사

Containment requires more than HEPA recirculation: the filtered airflow must leave the room through a controlled path at a rate greater than incoming leakage.

A portable purifier cleans air but leaves the room at neutral pressure.The sealed exhaust collar routes filtered air outside the contained space to create a pressure deficit.

A leak on the dirty side can discharge contaminated air around the HEPA filter.The upstream filter arrangement keeps dirty compartments under suction during operation.

Heavy construction dust rapidly loads the expensive final filter.Replaceable coarse and intermediate prefilters capture high-mass particles first.

Negative pressure falls as the filters load or the enclosure leakage changes.The variable blower and filter gauge allow airflow to be adjusted while resistance is monitored.

일반적인 응용 프로그램

Isolation and containment roomsCleanroom maintenance enclosuresLaboratory renovation zonesPharmaceutical dust containmentTemporary controlled exhaust

기술 매개변수

Representative construction ranges for a portable negative-pressure HEPA filtration unit are listed below.

핵심 재료	Variable-speed centrifugal blower with coarse prefilter, intermediate stage and upstream micro-glass H13-H14 HEPA filter
패널 두께	500-900 mm enclosure depth
유효 폭	500-900 mm cabinet width
최대 길이	Up to 1300 mm overall unit height or longest cabinet dimension
강철 면면 두께	1.0-1.5 mm dark-blue powder-coated steel or lightweight aluminium enclosure
코어 밀도	Approximately 90-120 kg/m³ compacted density of the HEPA pack used in the negative-pressure filtration cabinet
열전도도 (Thermal Conductivity)	Approximately 0.035-0.043 W/(m·K) for the HEPA pack used in the negative-pressure exhaust path
표면 마무리	Dark-blue chemical-resistant powder coat with black intake grille and stainless corner hardware
접합 유형	Gasketed negative-side filter door with positive-lock cassettes and sealed round exhaust duct flange
사용자 정의	의도된 응용 프로그램 및 운영 환경에 따라 사용할 수 있습니다.

사용 가능한 옵션

Single or multi-stage prefiltrationHEPA H13 or H14 final filterRound exhaust duct adaptersCaster frame or stackable skid

Planning a Negative-Pressure HEPA Filtration Unit specification?

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