(ぼうじん)

ぼうじん
noun
dustproof; dust protection; dust resistance
1. dustproof; dust protection; dust resistance
Protection against dust entering a device, space, or product. Used attributively (often as 防塵(ぼうじん)~) to describe products, masks, equipment, or rooms designed to keep dust out. Common on product specifications for cameras, smartphones, and industrial equipment.
防塵(ぼうじん)マスク。
A dust mask.
このカメラは防塵(ぼうじん)仕様(しよう)だ。
This camera is dustproof.
工事現場(こうじげんば)では防塵(ぼうじん)ゴーグルが必要(ひつよう)だ。
Dust-protection goggles are required on construction sites.
最新(さいしん)のスマートフォンは防水(ぼうすい)防塵(ぼうじん)性能(せいのう)(たか)く、アウトドアでも安心(あんしん)して使(つか)える。
The latest smartphones have high waterproof and dustproof performance, so you can use them outdoors with peace of mind.

Composed of (ぼう) (to prevent, to guard against) and (じん) (dust). A technical term commonly seen on product labels, safety equipment, and industrial specifications.

USAGE:
防塵(ぼうじん) is almost always used attributively — it modifies another noun rather than standing alone as a subject. On consumer electronics it very often appears paired with 防水(ぼうすい) (waterproof) as a single compact specification.

COMMON COLLOCATIONS:

  • 防塵(ぼうじん)マスク: dust mask
  • 防塵(ぼうじん)カバー: dust cover
  • 防塵(ぼうじん)仕様(しよう): dustproof design / specification
  • 防塵(ぼうじん)性能(せいのう): dustproof performance
  • 防水(ぼうすい)防塵(ぼうじん): waterproof and dustproof (a set phrase)

SIMILAR WORDS:

  • 防水(ぼうすい): waterproof — the parallel term for water resistance; the two are often paired
  • 耐塵(たいじん): dust-resistant — a less common variant emphasizing the ability to withstand dust rather than prevent its entry
  • 集塵(しゅうじん): dust collection — the opposite side of the problem, used for vacuum cleaners and industrial dust collectors