ArOmis Orbis Nox Merus review

The ArOmis Orbis Nox Merus is the second nebulizer here and the one for long sessions. Like the Raindrop, it uses a stream of air to break undiluted oil into fine particles, so there is no water tank and no heat. The difference is timing: you choose a 1, 4, 8 or 12-hour timer when you order, and the unit cycles 10 minutes on and 10 minutes off for that period before shutting off. A turn-knob sets intensity. The reservoir is hand-blown glass on a natural pine wood base, ArOmis says it is made in Taiwan, and the Nox version has no LED light. ArOmis lists replacement parts and US-based support. When we checked, the page showed $94.99 with a $45.00 saving off $139.99, though it also prints $129.99, so check the cart total. The fixed timer is the main drawback: pick carefully, because it cannot be changed later. The Raindrop covers a published 800+ square feet; ArOmis does not publish a coverage figure on this page.

Who it is for

nebulizer buyers who want long timed sessions

Price

$94.99 on sale, list $139.99, when checked.

Availability: Usually ships in 12hrs $129.99 $94.99 $139.99 (You save $45.00 )
Quoted from the vendor pricing page on November 13, 2026.

Key features

• Air-jet nebulizing with no water and no heat
• Timer chosen at purchase: 1, 4, 8 or 12 hours
• Cycles 10 minutes on and 10 minutes off for the chosen time
• Turn-knob intensity control
• Hand-blown glass reservoir and natural pine wood base

Strengths and weaknesses

• Strength: 12-hour option is the longest timed session on this list
• Strength: No LED light, which suits bedrooms
• Strength: Replacement parts and US-based support listed by the brand
• Weakness: The timer is factory-set, so you cannot change it after you order
• Weakness: Nebulizers use undiluted oil and go through bottles faster than ultrasonic units
• Weakness: The page shows several prices at once, so confirm the total in the cart

Key facts

• Type: Nebulizing (air-jet)
• Timer: 1, 4, 8 or 12 hours, chosen at purchase
• Cycle: 10 min on, 10 min off
• Materials: Hand-blown glass, pine wood
• Made in: Taiwan

Where it ranks

ArOmis Orbis Nox Merus is No. 5 in our Best Essential Oil Diffusers verdict.