noun
mildly air-conditioned train car
A train carriage with weaker air conditioning, often preferred by passengers who find normal cooling too strong. Commonly seen on Japanese trains alongside 弱冷房車.
See also: 弱冷房車
弱冷車は冷房が控えめなので、寒がりの人におすすめです。
The mildly air-conditioned car has gentler cooling, so it's recommended for people who feel the cold easily.