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GeneralAire HEPA Model 400R

Room Model
Key Specifications
  • Manufacturer: GeneralAire
  • Model Name: 400R
  • Part Number: 4640
  • Home Size: 4,500 SQFT
  • Type: HEPA Air Cleaner
  • Area: 4500 SQFT
  • CFM: 400
  • Warranty (Years): 5 years

Maintenance

  • HEPA Filter (GFI #4645)
    • Replace once per year
  • HEPA Pre-Filter (GFI #4646)
    • Replace every two years

Features

  • Room / Portable unit comes with casters
  • PSC Motor
  • Easy-Open Door
  • Variable-Speed Motor
  • Sound-Reducing Insulation
  • Polypropylene Caster Wheels

Other Information

  • Type:  HEPA
  • R = Room or Portable Model
  • Weight (pounds):  36 / 44 (shipping weight)
  • Dimensions (inches):   24 H x 17 W x 12.75 D
  • Related air flow (CFM):  400
  • Min. Ave. % Eff. 1.0-3.0 Microns: 95%
  • Operation:  air flow from furnace through air cleaner
  • Power:  115 VAC @ 60 Hz
  • Amperage (AMPS):  2.75
  • Certification:  c CSA us
  • Power consumption (watts):  300
  • Pallet quantity:  18
  • Mounting:  return air duct
  • Warranty (years):  5
Manufacturer
GeneralAire
Model Name
400R
Part Number
4640
Home Size
4,500 SQFT
Type
HEPA Air Cleaner
Size
24x17x12.75
Area
4500 SQFT
Motor
Variable
CFM
400
Style
Room-Portable
Voltage
115V
Warranty (Years)
5 years

PARTS

Image Part Name Ref # GFI # Qty Req'd Price
Pre-Filter for 400D, 400R, AC500 Pre-Filter for 400D, 400R, AC500 4646 4646 99933 $235.07
RAC400 Motor for HEPA Air Cleaners 4642 4642 99998 $927.14
HEPA Filter for 400D, 400R, AC500 HEPA Filter for 400D, 400R, AC500 4645 4645 99971 $314.94
Pre-Filter for 400D, 400R, AC500
$235.07 Qty Req'd: 99933
$927.14 Qty Req'd: 99998
HEPA Filter for 400D, 400R, AC500
$314.94 Qty Req'd: 99971

Trust a Pro for Healthy Home Solutions

Whole-home installs and servicing should be handled by a certified contractor. Connect with a trusted professional near you to ensure long-lasting comfort, protection, and performance.

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Full History

1937
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Founded in Detroit

General is founded by Art and Grace Redner in Detroit, Michigan, marking the beginning of a family legacy.
1939
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Supporting the War Effort

General begins manufacturing filters for bomber ground support equipment during World War II.
1943

Expanding Operations

General moves to a new Detroit location at Schoolcraft and Grand River.
1946
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New Detroit Home

General relocates to 12890 Westwood Avenue in Detroit, strengthening operations in Michigan.
1948

Growth into Canada

Canadian General Filters Ltd. is founded, extending reach to North America.
1953

Relocation to Novi, Michigan

General Filters moved to its current location in Novi, Michigan, marking a major milestone in its evolution as a manufacturing company.
1958
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Model 250 Humidifier Introduced

The Model 250 set a new standard for whole-home comfort, helping families maintain healthy humidity and improve indoor air quality.
1962
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New Oil Filters Introduced

1969
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Model 1040 Humidifier Debuts

General Filters introduced the Model 1040 humidifier, a breakthrough product that helped define whole-house humidification.
1983
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AC 1 Air Cleaner Introduced

General Filters introduced the Model 1040 humidifier, a breakthrough product that helped define whole-house humidification.
1997
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Steam Humidifiers Introduced

The GeneralAire Model 5500 provides clean, sterile moisture with a furnace-independent design, disposable cylinder, digital diagnostics, and included humidistat.
2006
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Gar-Ber® Acquisition

Gar-Ber Spin-On residential fuel oil filters were acquired by General Filters and continue to be manufactured to the same trusted specifications.
2006
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Elite Humidifiers Introduced

2009
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Advanced TERSus Technology Introduced

2014
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Dehumidification Expansion

The acquisition of Air & Energy Products expanded the company’s whole-house dehumidifier offerings.
2018
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Advanced Air Solutions

Wi-Fi-enabled dehumidifiers were introduced under the GeneralAire® brand, and Second Wind™ Air Purifiers were acquired to expand UV air purification solutions.
2018
general-filters-timeline-2018-touch-screen

Touch Screen & Wi-Fi Control

GeneralAire DH75 and DH100 whole-house dehumidifiers (75-100 pints/day) feature LCD touch screens and Wi-Fi capability via the GeneralAire App for remote monitoring.
2019
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Touch Screen & Wi-Fi Control

GeneralAire DH75 and DH100 whole-house dehumidifiers (75-100 pints/day) feature LCD touch screens and Wi-Fi capability via the GeneralAire App for remote monitoring.
2020
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Model 5500 Steam Humidifier Introduced

2020
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Brand Logo Refresh

New GeneralAire®, General Filters, and Canadian General Filters Brand Logos Introduced
2020
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Model 3200 Evaporative Humidifier Introduced

2020
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Model 4200 Evaporative Humidifier Introduced

2020
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Industry Standard Vapor Pad Lineup Introduced

2021
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BioGaskets Included in All Gar-Ber Oil Products

2021
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Introduced MERV 13 Filters

2023
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Model 4400A Fan-Assist Evaporative Humidifier Introduced