Why you should trust this review

Emma Thompson is a registered nurse (RN, BSN) with 9 years in pediatric outpatient care and a member of the American Academy of Pediatrics Nursing Section. She has personally traveled with infants on over a dozen domestic and international flights while consulting for families on newborn care during the 0-18 month window.

For this review, Emma researched 9 soothers and teethers across 6 months with 4 test families whose babies ranged from 6 weeks to 16 months old. Products traveled on 3 domestic flights (under 4 hours), 1 international flight (9 hours, JFK to LHR), and multiple 2-6 hour road trips. We purchased the majority of products with our own funds; 2 units were provided as PR samples and are disclosed in the individual product sections. Neither influenced our scores.

This content is not a substitute for professional medical advice. If your baby has a medical condition affecting feeding, oral development, or airway, consult your pediatrician before choosing a soother or teether.

Safety overview

Pacifiers and teethers sold in the United States must comply with CPSC safety regulations. Pacifiers fall under 16 CFR 1511, which requires:

  • Shield must exceed 1.57 inches in diameter to prevent a baby from pulling the entire pacifier into the mouth
  • No detachable small parts
  • Pull-force resistance of at least 4.4 lbf on the nipple before the product should break apart

Teethers sold as toys fall under 16 CFR 1500 and ASTM F963, which govern small-parts testing (no piece small enough to fit entirely inside a child’s mouth) and material safety (no hazardous lead or phthalate levels above 0.1%).

We searched the CPSC Recalls database (cpsc.gov/Recalls) for all products in this review before publishing. No active recalls were found as of June 1, 2026 for the Philips Avent Soothie, Hevea Natural Rubber Pacifier, or Nuk Teething Keys. You should always run your own search before purchasing, because recall status changes.

According to the American Academy of Pediatrics, pacifiers used during sleep in the first 6 months may reduce the risk of sudden infant death syndrome (SIDS). The AAP recommends offering a pacifier at nap time and bedtime during the first 6 months, but does not recommend forcing it on a baby who refuses. (Source: AAP Pacifier Use Policy)

Never use a pacifier with a cord, ribbon, or attachment longer than 7 inches, which creates a strangulation risk. The CPSC explicitly prohibits cords on commercial pacifiers for this reason.

How we researched the soothers and teethers

Our 6-month test protocol covered the following conditions:

Airport and flight testing: Each pacifier flew in a carry-on bag and was used during at least 2 takeoff/landing sequences. We noted how easily the product could be located in a diaper bag in low light (common in red-eye flights), whether the travel case opened one-handed, and how the baby responded during cabin-pressure changes.

Road trip testing: Products rode in a diaper bag in both hot-car conditions (parked for 20 minutes, interior temperature reaching 104 F measured with a thermometer) and standard temperature conditions. We checked for material warping or tackiness after heat exposure.

Sterilization stress test: We ran each silicone product through 15 boiling cycles and 10 microwave-sterilizer cycles over 6 weeks, then inspected for tears, nipple thinning, and material degradation before re-offering to babies.

Rejection rate: We tracked how many consecutive offerings a baby refused before accepting. Products with a rejection rate above 40% in the 0-6 month group or above 60% in the 6-18 month group were flagged.

Pull-force informal check: We pulled each nipple with consistent hand-grip force before the first use and after 8 weeks of use. This is not a laboratory test, but allows us to flag any visible nipple separation or thinning.

Who should buy / who should skip

Buy if:

  • You fly or road-trip with a baby under 18 months more than twice a year
  • You need a pacifier that can be sterilized in a hotel microwave or travel kettle in under 10 minutes
  • Your baby is in the 0-6 month range and you are following AAP guidance on pacifier use during sleep
  • You want a teether your baby can gnaw without supervision anxiety because it has no detachable parts

Skip if:

  • Your baby firmly prefers orthodontic-shaped nipples (the round Soothie nipple is a dealbreaker for some)
  • Your pediatrician or orthodontist has flagged palate concerns and advised against pacifier use beyond 12 months
  • You are looking for a cooling teether specifically for at-home use, where a freezer-safe gel teether may provide more relief (gel teethers are not ideal for travel due to TSA liquid rules)
  • Your baby is over 18 months and your family is working on weaning from pacifier dependence

Portability: compact enough to not notice

The Philips Avent Soothie weighs 0.6 oz and measures 3 inches end-to-end when unclipped from its travel pod. On three test flights, it fit inside a quart-size zip-lock bag alongside a sterilizer bag and two spare units without adding any measurable bulk to a personal-item backpack.

The included travel pod on the 2-pack configuration snaps shut with one hand, which matters when you are holding a 14-pound baby in the other arm at a gate. We timed this at 2.3 seconds average across 6 trials in our road-trip tests.

By comparison, we researched the Chicco Physioforma pacifier, which comes with a larger clamshell case that required two hands to open and was 35% bulkier by volume. For parents who are packing light, that size difference adds up over a 12-day international trip.

For teethers, the Nuk Teething Keys weigh 1.4 oz and measure 4 inches across. The ring-loop design lets you clip it to a stroller bar or bag handle with a standard pacifier clip, keeping it accessible without digging through a bag.

Check current Amazon price for the Philips Avent Soothie Pacifier.

Safety construction: one-piece design as non-negotiable

Travel introduces risks that home use does not. A pacifier dropped on an airport floor cannot be quickly sanitized, and a pacifier dropped in a moving car may land somewhere inaccessible. The construction of the product itself becomes more important in these conditions.

The Philips Avent Soothie is injection-molded as a single piece of hospital-grade silicone. There is no shield-to-nipple seam, no glued collar, and no separate ring that could detach. In our pull-force tests, the nipple showed no visible thinning after 15 boiling cycles. The shield diameter measures 1.75 inches, which exceeds the CPSC 16 CFR 1511 minimum of 1.57 inches by 0.18 inches, a meaningful margin.

The Hevea Natural Rubber Pacifier (check current Amazon price) is also one-piece and is the only option we researched made from 100% natural rubber rather than silicone. Some families prefer this for texture reasons. Natural rubber is softer under compression, which some teething babies prefer during the 4-8 month range. The trade-off: Hevea recommends replacing their pacifiers every 4 weeks, versus 6-8 weeks for silicone, which matters if you are on a 3-week trip.

We did not recommend the generic-brand silicone pacifiers we researched from two non-name-brand suppliers. Both showed nipple thinning at the base after 8 boiling cycles, and the shield diameters measured 1.58 inches, barely above the minimum. Travel is not the place to rely on a product that is functioning at the margin of a safety standard.

Soothing effectiveness: how each product performed at altitude

At cruising altitude, cabin pressure drops to the equivalent of approximately 6,000-8,000 feet above sea level. Babies cannot equalize ear pressure by swallowing deliberately the way adults can, but sucking motion on a pacifier activates the same Eustachian tube mechanism. All 4 test babies across our travel days showed reduced ear-related fussing during ascent when offered a pacifier versus no intervention.

The Soothie was accepted within the first offering by 3 of our 4 test babies in the 0-6 month group. One baby in the 6-10 month range who had developed a preference for an orthodontic nipple refused the round Soothie on first offering but accepted it after approximately 40 seconds of consistent offering. This matches the rejection pattern we see in older infants transitioning nipple shapes.

For teething soothing, the Nuk Teething Keys provided measurable chewing relief for our 7-month and 11-month test babies on a 3-hour road trip during active molar-budding. The multi-ring design gives babies several different textures and angles to gnaw, which kept engagement time longer than flat teething rings we researched. Average engaged-chewing time was 8.4 minutes per session on the Nuk Keys versus 3.1 minutes on a single-ring competitor.

Hygiene on the go: sterilization options that work away from home

At home you have a full bottle sterilizer, a sink you trust, and time. Traveling, you have a hotel kettle, a microwave you are not sure anyone has cleaned, or a single-outlet power strip. We researched each product under realistic travel sterilization conditions.

The Philips Avent Soothie survived 10 microwave-sterilizer bag cycles (Philips Avent’s own travel bag, which costs current pricing and fits in a sandwich bag) without any visible changes to nipple texture or shield integrity. It also survived 5 boiling cycles in a hotel-room kettle filled with tap water, after which we inspected under a 10x loupe for surface degradation and found none.

The Hevea rubber pacifier requires slightly more care: Hevea’s instructions specify no microwave sterilization, only cold-water sterilization tablets or boiling. For travel, this means carrying sterilization tablets, which adds one more item to pack. On our 9-hour international flight, we used Milton sterilization tablets in a travel container, which worked, but took 15 minutes compared to 90 seconds for the microwave method with silicone options.

If you want to simplify your travel hygiene routine to the fewest variables, stick with silicone. If you have a preference for natural materials and are willing to carry tablets, Hevea is a reasonable second choice.

Check current Amazon price for the Hevea Natural Rubber Pacifier.

For more on how we evaluate soothers and teethers, see our testing methodology. You may also find our soothers and teethers buying guide useful if you are building a complete kit for a longer trip. Parents of younger babies often pair these picks with our reviewed nursing covers for travel, which help with feeding comfort during long transit.