What are the side effects of year breathing of acetone?

OSHA indicates the following health issues:Main Routes of Exposure: Inhalation. Skin contact. Eye contact.

• Inhalation: Can irritate the nose and throat. At high concentrations: can harm the nervous system. Symptoms may include headache, nausea, dizziness, drowsiness and confusion. A severe exposure can cause unconsciousness.
• Skin Contact: May cause mild irritation. Can be absorbed through the skin, but harmful effects are not expected.
• Eye Contact: EYE IRRITANT. Causes moderate to severe irritation. Symptoms include sore, red eyes, and tearing. The vapour also irritates the eyes.
• Ingestion: Not harmful. If large amounts are ingested: Can cause effects as described for inhalation.
• Effects of Long-Term (Chronic) Exposure: Can cause dry, red, cracked skin (dermatitis) following skin contact. May harm the nervous system. Conclusions cannot be drawn from the limited studies available.
• Carcinogenicity: Not known to cause cancer.