На кухне снова не работает вытяжка, поэтому после жарки пахнет во всей квартире.

In Russian, на кухне is the normal idiomatic way to say in the kitchen.

Even though English uses in, Russian often uses на with certain places where English would not. Кухня is one of those common exceptions in everyday speech.

• на кухне = in the kitchen
• на почте = at the post office
• на заводе = at the factory

You may sometimes see or hear в кухне, but it is much less common and can sound unusual in ordinary conversation.

Also notice the form кухне: after на for location, кухня goes into the prepositional case:

• кухня → на кухне

Вытяжка here means a kitchen hood, extractor hood, or ventilation hood above the stove.

It is a feminine noun:

• nominative: вытяжка
• genitive: вытяжки
• prepositional: о вытяжке

In this sentence, вытяжка is the subject:

• вытяжка не работает = the hood is not working

Depending on context, вытяжка can also refer more generally to an exhaust system or ventilation extractor.

Russian very commonly uses работать / не работать for devices and appliances.

So:

• телевизор не работает = the TV isn’t working
• лифт не работает = the elevator isn’t working
• вытяжка не работает = the hood isn’t working

This does not always mean permanently broken. It can simply mean it is currently not functioning.

If you want to stress that something is broken, you could also say:

• вытяжка сломалась = the hood broke / has broken
• вытяжка сломана = the hood is broken

But не работает is the most natural neutral choice here.

Снова means again. In this sentence it modifies the whole idea is not working again:

• снова не работает = isn’t working again

This word order is very natural in Russian. It emphasizes that this situation has happened before.

You could also hear:

• вытяжка опять не работает

Here снова and опять both mean again, though опять is often a bit more conversational.

Because поэтому here means therefore / so, and it connects two clauses:

1. На кухне снова не работает вытяжка
2. поэтому после жарки пахнет во всей квартире

In Russian, clauses like this are normally separated by a comma.

So the structure is:

• X, поэтому Y = X, so Y

Example:

• Идёт дождь, поэтому мы сидим дома. = It’s raining, so we’re staying home.

Жарки is genitive singular of жарка.

It is genitive because of the preposition после:

• после
  • genitive = after

So:

• жарка = frying
• после жарки = after frying

Other examples:

• после работы = after work
• после ужина = after dinner
• после фильма = after the movie

Yes. Жарка is a verbal noun derived from жарить (to fry).

So:

• жарить = to fry
• жарка = frying

In this sentence:

• после жарки = after frying / after cooking something by frying

This is a very natural Russian way to express the activity as a noun.

This is a very common impersonal construction in Russian.

Пахнет here means something like:

• there is a smell
• it smells

Russian often does not name a grammatical subject in expressions about weather, physical sensations, or smells.

So:

• пахнет = it smells / there is a smell
• в квартире пахнет = it smells in the apartment

English uses a dummy subject it, but Russian usually does not.

By itself, пахнет usually just means there is a smell / it smells. Whether it is pleasant or unpleasant depends on context.

In this sentence, because:

• the hood is not working
• it happens after frying
• the smell spreads through the whole apartment

the meaning is clearly negative: the apartment smells of cooking/frying afterward.

If Russian wants to be more explicit, it can say:

• плохо пахнет = smells bad
• приятно пахнет = smells nice

The preposition во is just a phonetic variant of в. Russian often uses во when it sounds easier to pronounce.

Here:

• во всей квартире sounds smoother than в всей квартире

So:

• в / во both mean in
• во is chosen for pronunciation reasons

The phrase means:

• во всей квартире = throughout the whole apartment / in the entire apartment

It is the prepositional case, because в / во with location takes the prepositional.

So:

• квартира → в квартире
• вся квартира → во всей квартире

Notice both words change:

• вся → всей
• квартира → квартире

This phrase literally means in the whole apartment, but in English it is often more natural to translate it as throughout the apartment.

Because it agrees with квартире, and квартира is feminine.

Russian adjectives and adjective-like words must agree with the noun in:

• gender
• number
• case

Here:

• квартира = feminine singular
• after во for location, it becomes квартире (prepositional singular)
• вся must match it, so it becomes всей

So:

• nominative: вся квартира
• prepositional: во всей квартире

Yes, and it would be very natural.

There is a slight nuance:

• во всей квартире = in the whole apartment
• по всей квартире = all over the apartment / throughout the apartment

In many contexts, both work.
With smells, по всей квартире is especially common because it emphasizes that the smell spreads everywhere.

So Russian speakers might say either:

• пахнет во всей квартире
• пахнет по всей квартире

Both are understandable and natural.

The sentence contains two time ideas:

1. вытяжка ... не работает — the hood is currently not working
2. после жарки пахнет — after frying, there is a smell in the whole apartment

Russian present tense often describes a current general situation.
It does not have to mean only right this second.

So the sentence means something like:

• the hood is out of order again, and as a result, after frying the apartment smells

This is very natural Russian usage.

Yes.

• снова = again
• опять = again

Both are common, and in this sentence they are very close in meaning:

• На кухне снова не работает вытяжка
• На кухне опять не работает вытяжка

A rough tendency:

• снова can sound a little more neutral
• опять can sound a little more conversational, and sometimes slightly more annoyed depending on tone

But both are perfectly normal here.