気密性(きみつせい)

気密性(きみつせい) refers to airtightness—how well something is sealed against air leakage.

Etymology

気(き) (air) + 密(みつ) (dense, tight) + 性(せい) (property) = airtight quality

Housing terms

• 高気密(こうきみつ): high airtightness
• 高気密(こうきみつ)高断熱(こうだんねつ): high airtightness, high insulation (common real estate phrase)
• 気密性(きみつせい)が高(たか)い: has high airtightness
• 気密性(きみつせい)を高(たか)める: to improve airtightness

Related properties

• 断熱性(だんねつせい): thermal insulation
• 防音性(ぼうおんせい): soundproofing
• 耐久性(たいきゅうせい): durability

Benefits

省(しょう)エネ (energy saving), 冷暖房(れいだんぼう)効率(こうりつ) (heating/cooling efficiency), 結露(けつろ)防止(ぼうし) (condensation prevention).