Where can I sell an unused CPAP machine?

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ammunition, clips, cartridges, reloading materials, gunpowder, fireworks, explosives
recalled items; hazardous materials; body parts/fluids; unsanitized bedding/clothing
prescription drugs, medical devices; controlled substances and related items
alcohol or tobacco; unpackaged or adulterated food or cosmetics
child pornography; bestiality; offers or solicitation of illegal prostitution
pet sales (re-homing with small adoption fee ok), animal parts, stud service
false, misleading, deceptive, or fraudulent content; bait and switch; keyword spam
offensive, obscene, defamatory, threatening, or malicious postings or email
anyone’s personal, identifying, confidential or proprietary information
food stamps, WIC vouchers, SNAP or WIC goods, governmental assistance
stolen property, property with serial number removed/altered, burglary tools, etc
ID cards, licenses, police insignia, government documents, birth certificates, etc
US military items not demilitarized in accord with Defense Department policy
counterfeit, replica, or pirated items; tickets or gift cards that restrict transfer
lottery or raffle tickets, sweepstakes entries, slot machines, gambling items
spam; miscategorized, overposted, cross-posted, or nonlocal content
postings or email the primary purpose of which is to drive traffic to a website
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affiliate marketing; network, or multi-level marketing; pyramid schemes
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