Purchased today at Lowes, turned it on and makes no noise whatsoever. Is it not working?

Thank you for your question. We're sorry to hear of the trouble you are experiencing with your air purifier, as this is not a common occurrence. We would be happy to speak with you and offer any troubleshooting or other assistance you may need. Please email us at customer.service@hamiltonbeach.com, or give us a call at 800-851-8900.