Camera are aer curat.

In Romanian, camera is usually the room.

That is because the basic noun is cameră = room, and Romanian often puts the definite article at the end of the noun:

• cameră = a room
• camera = the room

So in this sentence, camera is not the English word camera. It is cameră + the attached definite article.

As a side note, Romanian can express the idea of an English camera, but usually with something more specific such as aparat foto, cameră video, etc., depending on the context.

Romanian usually does not use a separate word like English the before the noun. Instead, the definite article is attached to the end of the noun.

So:

• cameră = a room
• camera = the room

This is one of the big differences between English and Romanian grammar.

Are means has.

It comes from the verb a avea = to have.

Present tense:

• eu am = I have
• tu ai = you have
• el/ea are = he/she has

So camera are literally means the room has.

Because the sentence means The room has clean air, not The room is clean air.

• are = has
• este/e = is

So:

• Camera are aer curat. = The room has clean air.
• Camera este curată. = The room is clean.

Those are different ideas in Romanian, just as they are in English.

Aer curat means clean air in a general sense. It is an indefinite idea, not the clean air.

• aer = air
• aer curat = clean air
• aerul curat = the clean air

After a avea (to have), Romanian often uses a noun without the definite article when talking about something in a general way:

• are apă = has water
• are lumină = has light
• are aer curat = has clean air

So camera are aer curat is natural for the room has clean air.

Because in Romanian, adjectives often come after the noun.

So:

• aer curat = clean air
• literally: air clean

This is very common in Romanian:

• om bun = good person
• casă mare = big house
• aer curat = clean air

Sometimes adjectives can come before the noun, but the normal basic order is usually noun + adjective.

Because curat agrees with aer, and aer is a masculine singular noun.

Romanian adjectives change form to match the noun’s gender and number.

Here:

• aer = masculine singular
• so the adjective is curat

Compare:

• aer curat = clean air
• apă curată = clean water

So curată would be wrong here because aer is not feminine.

It is singular.

Camera means the room.

The plural would be different:

• cameră = a room
• camera = the room
• camere = rooms
• camerele = the rooms

Since the verb is are (has), that also matches a singular subject.

Usually, Camera are aer curat is the more natural version for this meaning.

Adding un gives:

• un aer curat = a clean air

That sounds less natural in this context, because English and Romanian both often treat air as an uncountable/general substance here.

So if you mean The room has clean air, stick with:

• Camera are aer curat.

Yes, it is understandable and grammatically fine.

However, depending on context, Romanian speakers might also say things like:

• Aerul din cameră este curat. = The air in the room is clean.
• În cameră este aer curat. = There is clean air in the room.

These may sound a bit more idiomatic in some situations. But Camera are aer curat is still a valid sentence and is easy to understand.

The dictionary form is cameră.

In a dictionary, Romanian nouns are normally listed in the indefinite singular form, so you would look up:

• cameră = room

Then the definite singular form is:

• camera = the room

This is important for learners, because the form you see in a sentence is often not the exact dictionary form.

A simple approximate pronunciation is:

KAH-me-ra AH-re AH-er koo-RAHT

A few helpful notes:

• c before a sounds like k
• e is usually like eh
• r is trilled or tapped
• curat has the stress on the second syllable: cu-RAT

Also, if Romanian diacritics were written fully, the base noun would be cameră, but in this sentence camera is the definite form, so the spelling without a diacritic is normal there.

You would say:

O cameră are aer curat.

Compare:

• o cameră = a room
• camera = the room

So the difference is:

• O cameră are aer curat. = A room has clean air.
• Camera are aer curat. = The room has clean air.