De or het brandbluskleding?

The correct Dutch article is:

de brandbluskleding

Rule Words ending in -ing: almost always de. See the rule
Meaning (Dutch) brandwerende kleding die gedragen word door mensen van de brandweer

How to use brandbluskleding

the brandbluskledingde brandbluskleding
this brandbluskledingdeze brandbluskleding
that brandbluskledingdie brandbluskleding
our brandbluskledingonze brandbluskleding
your brandbluskledingjouw brandbluskleding
every brandbluskledingelke brandbluskleding
which brandbluskleding?welke brandbluskleding?
a big brandbluskleding / the big brandbluskledingeen grote brandbluskleding, de grote brandbluskleding

Meaning, plural, diminutive, pronunciation and translations: WikiWoordenboek (Dutch Wiktionary) (CC BY-SA 4.0). Example sentences: Tatoeba (CC BY 2.0 FR).