3M Half Face Reuseable Respirator, 4000 Series


The 4000 Series Respirators are a unique range of ready-to-use, maintenance-free half face respirators.

The built-in filters are integral to the mould providing comfortable protection against a combination of many gases, vapours and particulate hazards. Utilising the unique filter technology enables a low-profile, well balanced design for an undisturbed field of view.  Meets the performance requirements of AS/NZS 1716:2012.

Features and Benefits:

  • Lightweight, well balanced design
  • Soft, non-allergenic face seal
  • Textured face seal to minimise slippage and improve comfort
  • Built-in filters - No cartridge or filter replacement required
  • Four versions available, each offering protection against different hazards
  • One piece, maintenance-free design
  • Unique wrap around design provides an undisturbed field of view
  • Use until damaged, particulate filters clog or gas filters become saturated
  • Re-sealable bag provides convenient and clean storage between uses
  • Ideal for contractors, plant shutdowns and spill response (eliminates need for separate respirator, cartridge/filter or carrying out respirator maintenance)

Models avaliable

3M 4251 - For protection against: Organic vapour + Particulate respirator,  Class:A1P2

3M 4255 - For protection against: Organic vapour + Particulate respirator, Class: A2P2

3M 4277 - For protection against: Organic vapour / Inorganic + Acid gas / Particulate respirator, Class: A1B1E1P2

3M 4279 - For protection against: Organic vapour / Inorganic + Acid gas / Ammonia / Particulate respirator, Class: A1B1E1K1P2

*Price listed is per mask, minimum order of 10 mask

Most* items are shipped using Australia Post; a flat shipping & handling fee of $9.95 is charged at checkout (*except bulky orders, see below). Please contact our Customer Service Team if you have any special shipping requests. Please note; any items that are contained in a commercial quotation by our Sales Team are not included in our $9.95 standard shipping rate offer.

Some items are not able to be shipped via Australia Post due to size and/or weight restrictions, but they can be collected from our Collingwood Store free of charge or the Bulky Freight charge will be shown below.

Most items are held in stock in Collingwood, occasionally we run out of stock of some items. We will notify you advising when your order will be available for collection.

External Territories:

The following External Territories may not be shippable, and must be quoted in advance. Please call or email instead of ordering online.

  • Cocos (Keeling) Islands
  • Antarctica
  • Christmas Island
  • Norfolk Island



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