Salonda parfüm kokusu hâlâ var.

Because -da / -de / -ta / -te is the locative case, meaning in / at / on depending on context.

• salon = living room / hall / salon
• salonda = in the living room

The ending changes by vowel harmony and consonant rules:

• ev → evde = in the house
• okul → okulda = at school
• park → parkta = in the park

So Salonda ... var means There is ... in the living room.

This is a very common Turkish structure: noun + noun with possessive ending.

• parfüm = perfume
• koku = smell
• kokusu = its smell

So parfüm kokusu literally means the smell of perfume.

This is called a noun compound. In Turkish, when one noun describes another in this way, the second noun usually takes the 3rd person possessive ending:

• kahve fincanı = coffee cup
• araba kapısı = car door
• parfüm kokusu = perfume smell / smell of perfume

Even though English does not show possession here in the same way, Turkish usually does.

Because in this compound, the second noun normally takes a possessive suffix.

• koku = smell
• kokusu = its smell

So:

• parfüm kokusu = the smell of perfume not just
• parfüm koku

The form parfüm koku would sound incomplete or ungrammatical in standard Turkish for this meaning.

The suffix here is basically -(s)I, which changes according to vowel harmony:

• kapı → kapısı
• göz → gözü
• koku → kokusu

The s appears as a buffer consonant between vowels.

Hâlâ means still.

So:

• Salonda parfüm kokusu hâlâ var. = There is still a smell of perfume in the living room.

It tells you the situation continues now, often implying it was already true before.

Compare:

• Salonda parfüm kokusu var. = There is a smell of perfume in the living room.
• Salonda parfüm kokusu hâlâ var. = There is still a smell of perfume in the living room.

Because Turkish often uses var and yok to express existence, instead of a verb like English there is / there are.

• var = there is / exists / is present
• yok = there is not / does not exist / is absent

So:

• Salonda parfüm kokusu var. = There is a smell of perfume in the living room.
• Salonda parfüm kokusu yok. = There is no smell of perfume in the living room.

In this sentence, var is doing the job that there is does in English.

Here, var means exists / is present / there is.

It is not exactly the same as the English verb to be. It is used specifically for existence or presence.

For example:

• Masada kitap var. = There is a book on the table.
• Evde kimse var mı? = Is anyone at home?
• Sorun var. = There is a problem.

So in your sentence, var tells us that the perfume smell is present in the living room.

Turkish word order is more flexible than English, but different orders change focus or emphasis.

The neutral version here is:

• Salonda parfüm kokusu hâlâ var.

Possible alternatives:

• Parfüm kokusu salonda hâlâ var.
• Hâlâ salonda parfüm kokusu var.

These can all be understandable, but they may sound different in emphasis:

• starting with salonda highlights the location
• starting with parfüm kokusu highlights what is present
• starting with hâlâ emphasizes still

The original sentence sounds natural and straightforward.

Turkish has no articles equivalent to English a/an or the.

So parfüm kokusu can mean:

• a smell of perfume
• the smell of perfume
• sometimes simply perfume smell

The exact meaning depends on context.

In this sentence, English might naturally translate it as:

• There is still a smell of perfume in the living room.

Turkish leaves that distinction more to context than English does.

• koku = smell / odor
• kokusu = its smell / the smell of it

Examples:

• Güzel bir koku var. = There is a nice smell.
• Bu çiçeğin kokusu güzel. = This flower’s smell is nice.
• Parfüm kokusu ağır. = The smell of perfume is strong/heavy.

So koku is the basic noun, while kokusu is the possessed form often used in compounds or explicit possession.

In everyday Turkish, salon often means:

• living room
• sitting room
• hall
• sometimes large room depending on context

In a home, salon usually means the living room.

So Salonda... most likely means In the living room... here.

Hâlâ is pronounced roughly like haa-laa, with both vowels clearly pronounced.

The circumflex in â can help show:

• a slightly longer vowel
• or sometimes a distinction between similar-looking words

In modern everyday writing, many people write it as hala, but hâlâ is the careful standard spelling for still.

This is useful because hala without the circumflex can also mean paternal aunt in Turkish.

So:

• hâlâ = still
• hala = aunt

You replace var with yok:

• Salonda parfüm kokusu hâlâ yok. = There is still no smell of perfume in the living room.

If you want to say There is no longer a smell of perfume in the living room, a more natural Turkish sentence would often be:

• Salonda artık parfüm kokusu yok.

So:

• hâlâ = still
• artık = no longer / anymore, depending on context

You add mı / mi / mu / mü after the element before var, following vowel harmony:

• Salonda parfüm kokusu hâlâ var mı? = Is there still a smell of perfume in the living room?

This is a very common pattern:

• Su var mı? = Is there water?
• Evde kimse var mı? = Is anyone home?
• Odada ışık var mı? = Is there light in the room?

So var mı? is the standard way to ask whether something is present.