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The M40 field protective mask features three voicemitters, one on either the right or left side, and one in front. A voicecom adapter may be placed over the front voicemitter to amplify the user's voice. The mask can be adjusted in the field to accept the filtering canister on either side, so that a
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The M40 comes with a drinking system that allows the user to drink water after donning the mask for long periods of time in a chemically contaminated environment. In order to use the drinking system the user must also have suitably equipped canteen lids or an adapter for other containers.
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protective masks which had been in service with the US armed forces since 1959. The M40 was to be a return to conventional protective mask design with an external side-mounted filter canister, rather than the internal cheek filters of the M17, which were awkward to change, especially in a
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mask, prototype of M40, the XM40 mask. Throughout its development it got numerous important changes that helped pave the way towards the final product, such as increased rigidity, bulk reduction and the removal of a dimple under the voice diaphragm for clearing the mask.
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272:. However, both masks suffered from the inadequate protective capabilities of their face pieces, which was of a silicone rubber susceptible to corrosion from
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and its allies to protect from field concentrations of chemical and biological agents, along with radiological fallout particles. It is not effective in an
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A soldier from the 70th
Brigade Support Battalion, 210th Fires Brigade, 2nd Infantry Division wears the M40 during an NBC exercise in South Korea.
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284:'second skin' had to be quickly issued for fitting over and reinforcing the M40 facepiece to make it effective in its intended role.
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A year later, in 1984, the prototype was finalized as the M40 Field
Protective Mask, but it did not enter service until after the
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weapon may be shouldered. Right-handed shooters will normally locate the canister on the left side of the mask and vice versa.
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in active service. Still used by U.S. Army
Reserve and National Guard units and the U.S. Marine Corps Reserve as of 2021.
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The C2 canister on the M40 mask can protect the user from up to 15 nerve, choking, and blister agent attacks, and two
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The M42 series masks are a variant of this mask with alterations that make it better suited for use by
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crews, who have to connect their masks to and draw air from their vehicle's own filtration system.
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517:"U.S. Transfers M40 Field Protective Masks to AFP to Support Counterterrorism Operations"
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276:. Thus, the masks were effectively ill-suited for protecting against much more than
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The M40 was the result of a program in the 1980s to develop a successor to the
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551:"LOOK: Army frontliners stay COVID-19-free through decontamination"
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Nowadays, XM40 models are considered extremely rare and valuable.
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The M40 field protective mask is currently being replaced by the
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353:. It was mass-produced and mainstay issued from 1992 onwards.
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1992–Present (U.S. military, limited use after 2006)
392:, supplied from the Joint U.S. Military Assistance Group.
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received 1,000 M40 gas masks and C2 filters through the
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US Navy
Seabees jog during an exercise with M40s worn.
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451:American Horse, LCpl Vanessa M. (2 December 2009).
341:came out with the first, heavily influenced by the
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56:. Unsourced material may be challenged and removed.
264:also replacing the older M17 in service with the
309:'s Mutual Logistics Support Agreement program.
260:in the mid-1990s, with another new design, the
531:"US turns over 1,000 gas masks to PH military"
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8:
944:Military equipment introduced in the 1990s
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252:The M40 was phased into service with the
116:Learn how and when to remove this message
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880:Respirator assigned protection factors
415:M50 joint service general purpose mask
296:M50 joint service general purpose mask
574:Military.com: New Gas Mask on the Way
7:
934:United States Marine Corps equipment
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484:"Marine Corps fielding new gas mask"
54:adding citations to reliable sources
850:Mission Oriented Protective Posture
482:Sanborn, James K. (June 2, 2010).
435:from websites or documents of the
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431: This article incorporates
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16:Gas mask used by the US military
453:"M50: New Look Same Protection"
41:needs additional citations for
939:Gas masks of the United States
1:
840:Personal protective equipment
875:Workplace respirator testing
222:oxygen deficient environment
249:contaminated environment.
65:"M40 field protective mask"
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709:General Service Respirator
665:General Service Respirator
457:United States Marine Corps
437:United States Marine Corps
301:On September 2, 2017, the
218:United States Armed Forces
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132:M40 field protective mask
18:
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814:(Yugoslavia; 1960s–1980s)
670:Light Anti-Gas Respirator
210:M40 field protective mask
160:Place of origin
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675:Civilian Duty Respirator
390:Philippine Marine Corps
303:Philippine Marine Corps
808:(Finland; 1960s–1980s)
433:public domain material
384:: In service with the
241:
835:Plague doctor costume
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649:Small Box Respirator
50:improve this article
21:M40 (disambiguation)
19:For other uses, see
870:Respirator fit test
802:(France; 1916–1918)
758:Soviet Union/Russia
519:. 2 September 2017.
278:riot control agents
212:was one of various
488:Marine Corps Times
413:: Replaced by the
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194:Production history
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463:on 26 June 2020
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173:In service
168:Service history
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494:on 9 June 2010
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773:(1950s–1970s)
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539:. 2017-09-02.
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106:December 2009
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67: –
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61:Find sources:
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39:This article
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28:
27:
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767:(1915–1930s)
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732:(1959–1990s)
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558:. Retrieved
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536:ABS-CBN News
534:
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496:. Retrieved
492:the original
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465:. Retrieved
461:the original
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307:U.S. Embassy
300:
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282:butyl rubber
258:Marine Corps
251:
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216:used by the
209:
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185:
181:Used by
112:
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93:
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79:
72:
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48:Please help
43:verification
40:
865:Respirators
779:(1962–1990)
693:(1966–1986)
644:Hypo helmet
467:22 December
382:Philippines
323:blood agent
224:or against
928:Categories
860:Cartridges
845:Smoke hood
639:Black Veil
560:2021-07-16
422:References
246:M17-series
76:newspapers
748:M-50/M-51
742:M40 field
703:FM12 CBRN
684:Post WWII
634:PH helmet
613:Gas masks
339:ILC Dover
337:In 1983,
325:attacks.
254:U.S. Army
900:Category
785:(1980s–)
744:(1990s–)
738:(1980s–)
351:Gulf War
280:, and a
199:Designed
154:Gas mask
910:Commons
828:Related
750:(2009–)
736:MCU-2/P
711:(2010–)
705:(1997–)
699:(1986–)
697:S10 NBC
555:Spin.ph
368:Current
262:MCU-2/P
232:History
226:ammonia
90:scholar
691:S6 NBC
498:2 June
408:
397:Former
379:
313:Design
92:
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78:
71:
63:
771:GP-4u
363:Users
202:1980s
187:Users
97:JSTOR
83:books
777:GP-5
500:2010
469:2009
388:and
270:Navy
268:and
256:and
208:The
184:See
150:Type
69:news
818:C-4
806:M61
783:PMK
730:M17
627:WWI
343:M17
52:by
930::
812:M1
800:M2
553:.
533:.
508:^
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298:.
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113:(
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