Six models compared across price, ease of use, durability, and total cost of ownership, matched to the specific way small businesses actually deploy an AED.
The 30-Second Answer
There is no single "best" AED for every small business; the right model depends on your budget, whether your staff has any training, and whether customers or the public will be nearby. For most small businesses buying a single unit, the ZOLL AED Plus is the strongest all-around choice because it combines real-time CPR feedback with a standard consumer battery that keeps long-term costs low. For the tightest budgets, the Defibtech Lifeline delivers full clinical performance at the lowest price point in this comparison.
Small business owners researching AEDs face a specific version of the buying decision that differs from hospitals, EMS agencies, or large corporate campuses. Budget is tighter, the person who ends up using the device is almost certainly untrained, and there usually is not a dedicated safety officer managing an ongoing program. The "best" AED in this context is not the one with the most features; it is the one that a stressed, untrained employee can operate correctly on the worst day of someone's life, at a price and maintenance burden a small business can actually sustain.
This comparison evaluates six AEDs currently available in the U.S. market against that specific standard. Every price reflects real 2026 U.S. market data and matches the figures published in our companion articles on AED pricing and new versus refurbished options.
What This Article Covers
1. Quick Comparison Table
| Model | Best For | Auto Type | New Price |
|---|---|---|---|
| ZOLL AED Plus | Best overall small business pick | Semi or Fully | $1,500 to $1,850 |
| Defibtech Lifeline | Most affordable option | Semi or Fully | $1,100 to $1,400 |
| Philips HeartStart OnSite | No prescription needed (OTC) | Fully-Automatic only | $1,200 to $1,500 |
| HeartSine samaritan PAD 350P | Customer-facing / retail durability | Semi-Automatic | $1,300 to $1,550 |
| Cardiac Science Powerheart G5 | Multi-location businesses | Semi or Fully | $1,700 to $2,050 |
| ZOLL AED 3 | Modern office with Wi-Fi monitoring | Semi or Fully | $1,900 to $2,300 |
2. The 6 Best AEDs for Small Business
ZOLL AED Plus
The ZOLL AED Plus earns the top overall recommendation for small businesses because it solves the two problems that matter most in this segment: responder confidence and long-term affordability. Real CPR Help technology gives the responder live feedback on compression rate and depth during CPR, which is valuable precisely because the responder is likely to be untrained and uncertain about whether they are doing CPR correctly.
- Real-time CPR compression coaching for untrained responders
- Uses standard Duracell CR123A batteries, available at any retailer
- 7-year manufacturer warranty
- One-piece CPR-D-padz electrode simplifies pad placement
Defibtech Lifeline
For small businesses where budget is the primary constraint, the Defibtech Lifeline delivers full clinical AED performance at the lowest entry price in this comparison. It strips complexity down to a simple, high-visibility interface with clear voice prompts, manufactured in Guilford, Connecticut.
- Lowest new-unit price point in this comparison
- Simple, minimal-button interface reduces operator confusion
- Bright, high-visibility housing for fast location in an emergency
- Rugged construction tested for shock and vibration resistance
Philips HeartStart OnSite
The Philips HeartStart OnSite is one of only three AEDs in the U.S. market cleared by the FDA for over-the-counter sale, meaning no physician prescription is required to purchase it. For a small business owner who wants to skip the prescription paperwork entirely, this is the most direct path to a compliant purchase. It is fully-automatic only, which pairs well with an untrained responder pool.
- No physician prescription required (FDA-cleared OTC)
- Fully-automatic shock delivery removes the button-press decision
- Widely regarded as one of the most approachable voice-guided rescue workflows
- Compact and lightweight for easy wall mounting
HeartSine samaritan PAD 350P
Small businesses that see significant customer or public foot traffic (retail storefronts, restaurants, gyms) benefit from the HeartSine 350P's IP56 rating, the highest dust and water resistance rating among mainstream AEDs in the U.S. market. It is also FDA-cleared over-the-counter. The single-cartridge Pad-Pak combines pads and battery into one consumable, simplifying maintenance for an owner without dedicated safety staff.
- IP56 rating, highest dust and water resistance in this comparison
- No physician prescription required (FDA-cleared OTC)
- Pad-Pak combines pads and battery into a single 4-year replacement cartridge
- Smallest and lightest AED in this comparison at approximately 2.4 lbs
Cardiac Science Powerheart G5
Small businesses with more than one location (a chain of two or three retail stores, a multi-office professional practice) benefit from the Powerheart G5's Intellisense smart chip, which is embedded directly in the replacement pads and communicates expiration status to the AED automatically. For an owner managing AED readiness across multiple sites without a dedicated facilities team, this materially reduces the risk of a missed expiration.
- Intellisense smart chip pads auto-report expiration status to the AED
- Optional iCPR variant adds real-time compression feedback
- Reduces manual inspection burden across multiple locations
- Optional AEDSafetrack program management software for fleet tracking
ZOLL AED 3
For small businesses that want proactive readiness alerts without manual inspection (a tech-forward office, a co-working space operator), the ZOLL AED 3 offers Wi-Fi connectivity and an integrated status dashboard that sends automatic notifications if the device needs attention. RapidShock technology reduces the pause between the end of CPR compressions and shock delivery.
- Wi-Fi connectivity sends automatic readiness alerts
- RapidShock technology minimizes pre-shock pause
- Integrated status dashboard visible at a glance on the device
- Real CPR Help feedback carried over from the AED Plus platform
3. Do Small Businesses Actually Need an AED?
Federal OSHA guidance does not mandate AEDs in most workplaces (see Section 4 for specifics), so no small business is universally required to have one. Whether it makes sense for your specific business comes down to the same framework that applies to any AED purchase: how many people are regularly on-site, how far away professional EMS response is, and what the activity or demographic profile looks like.
Sudden cardiac arrest survival probability drops approximately 7 to 10 percent for every minute without defibrillation. For a small business with a handful of employees and no regular public foot traffic, the statistical likelihood of an on-site cardiac arrest during the AED's service life is genuinely low, but so is the cost of preparedness relative to other insurance-style business expenses. For a small business with meaningful customer or public traffic (a gym, a restaurant, a retail storefront), the exposure is proportionally higher.
If your business regularly has 10 or more people on-site (employees plus customers or visitors) at any given time, or if your location is more than 5 minutes from likely EMS response, an AED is a defensible and inexpensive investment. For a full decision framework, see the Complete AED Buyer's Guide.
4. Legal Requirements for Small Business AEDs
According to OSHA's own published guidance, federal OSHA standards do not specifically address automated external defibrillators. AED-adjacent exposures are addressed indirectly through general industry first-aid standards, but there is no dedicated federal AED mandate that applies uniformly to small businesses.
That does not mean there is no regulatory landscape to navigate. Several layers can apply depending on your business type and location:
- State and local mandates. A number of states require AEDs in specific business categories, most commonly gyms and fitness facilities, regardless of size. Verify requirements for your specific state and industry.
- Industry-specific requirements. Healthcare-adjacent small businesses (dental offices, physical therapy practices, medical spas) sometimes face licensing-board requirements independent of general business law.
- OSHA General Duty Clause. Even without an AED-specific standard, OSHA's General Duty Clause (Section 5(a)(1)) requires employers to maintain a workplace free of recognized hazards. Some safety consultants view a documented AED program as one way to demonstrate this duty of care, though it is not a specific compliance requirement.
- FDA prescription requirements. Most AEDs require a prescription to purchase (only three OTC models are exempt). Authorized distributors, including Total AEDs, handle this paperwork as part of the purchase process.
For a complete state-by-state breakdown, see our AED Laws & Compliance hub.
5. Are Small Businesses Liable for AED Use?
Good Samaritan laws in all 50 states generally extend legal protection to a business and its employees who use an AED in good faith during an emergency, even without formal medical training. These protections were specifically designed to remove the liability fear that would otherwise discourage bystander intervention.
The more realistic liability exposure for a small business is not the act of using the AED, but program neglect: an AED with expired pads that fails during an emergency, or a device that is inaccessible when needed. A documented, minimally maintained program (checking the AED monthly, keeping pads and battery current, and ensuring at least a few staff members know its location) addresses this exposure far more effectively than the choice of which specific AED model to buy.
Buying and deploying an AED, even without formal staff training, is broadly protected activity under Good Samaritan law in every state. The liability risk that actually matters is neglecting the device once it is installed, not the decision to install one.
6. Total Ongoing Costs Over 5 Years
Beyond the initial purchase, small business owners should budget for pad replacement (every 2 years for most brands), battery replacement (every 4 to 5 years, or every 4 years for HeartSine's combined Pad-Pak), a wall cabinet, and basic signage. The table below shows a realistic 5-year cost projection for a single-unit deployment, using the ZOLL AED Plus as the reference model.
| Cost Category | Frequency (5-Year Window) | 5-Year Total |
|---|---|---|
| Replacement pads | 2 replacements (every 2 years) | $160 |
| Replacement battery (consumer CR123A cells) | As needed, low cost per cell | $40 |
| Wall cabinet (alarmed) | One-time | $250 |
| Wall signage | One-time | $40 |
| Basic CPR/AED training (3 employees, initial + 1 refresher) | Initial plus one 2-year refresher | $390 |
| Estimated 5-Year Ongoing Cost | $880 | |
Combined with the device purchase price, a small business deploying a ZOLL AED Plus should budget approximately $2,380 to $2,730 total across the first 5 years. Brands using proprietary batteries instead of consumer cells (Philips, HeartSine, Cardiac Science, current ZOLL AED 3) will see modestly higher recurring costs; see our full AED cost breakdown for brand-by-brand detail.
7. Which One Should You Buy?
Choose the ZOLL AED Plus If
You want the strongest overall balance of features, responder confidence support, and long-term affordability. This is the right default choice for most single-location small businesses without a specific constraint pushing toward another model.
Choose the Defibtech Lifeline If
Budget is your primary constraint and you want the lowest-cost path to a fully compliant, FDA-cleared AED without sacrificing core clinical performance.
Choose an OTC Model (Philips OnSite or HeartSine 350P) If
You want to avoid the prescription paperwork step entirely, or your business is customer-facing and durability against dust, spills, or water exposure matters (favor the HeartSine 350P for its IP56 rating).
Choose the Cardiac Science Powerheart G5 or ZOLL AED 3 If
You operate more than one location, or you want proactive automated readiness monitoring rather than relying entirely on manual monthly inspection.
For a broader framework covering brand selection beyond this small business shortlist, see our Complete AED Buyer's Guide.
8. Frequently Asked Questions
Do small businesses need an AED?
There is no universal federal mandate requiring small businesses to have an AED. Whether it makes sense depends on how many people are regularly on-site, proximity to EMS response, and the activity profile of the business. As a rule of thumb, businesses with 10 or more people on-site at any given time, or locations more than 5 minutes from EMS response, benefit disproportionately from on-site AED availability. Some states mandate AEDs for specific business categories (most commonly gyms and fitness facilities) regardless of size; verify your specific state and industry requirements.
How much does an AED cost for a business?
New AEDs suitable for small business deployment range from approximately $1,100 to $2,300 depending on brand and features, based on the six models compared in this article. Refurbished units can reduce this by 30 to 50 percent. Beyond the device, budget approximately $880 in ongoing costs over the first 5 years for pads, battery, cabinet, signage, and basic staff training. See our full AED cost breakdown for complete pricing detail.
What are the legal requirements for an AED in a small business?
Federal OSHA standards do not specifically address AEDs, according to OSHA's own published guidance, so there is no uniform federal mandate. Requirements vary by state and industry; gyms and fitness facilities are the most commonly regulated small business category. Most AEDs require a physician's prescription to purchase (three FDA-cleared over-the-counter models are the exception). See our AED Laws & Compliance hub for a state-by-state breakdown.
Which AED is easiest to maintain?
For a single-location small business, the ZOLL AED Plus is among the easiest to maintain because it uses standard consumer CR123A batteries available at any retailer, avoiding the need to special-order proprietary batteries. For multi-location businesses, the Cardiac Science Powerheart G5's Intellisense smart-chip pads automatically report expiration status to the AED, reducing the manual inspection burden across sites. The HeartSine 350P's Pad-Pak cartridge combines pads and battery into a single 4-year replacement, which simplifies the maintenance calendar to one recurring task instead of two.
Are small businesses liable for AED use?
Good Samaritan laws in all 50 states generally protect businesses and employees who use an AED in good faith during an emergency, even without formal training. The more realistic liability exposure comes from program neglect (expired pads, an inaccessible device) rather than the act of using the AED itself. A simple documented maintenance routine addresses this risk far more effectively than which specific model is purchased. See Section 5 for detail.
Is the AED easy enough for an untrained employee to use during a panic?
Yes, all six models in this comparison are designed for use by untrained lay responders, with voice-guided prompts walking the user through every step. Fully-automatic models (like the Philips HeartStart OnSite) remove the additional decision point of pressing a shock button, which peer-reviewed research suggests may reduce hesitation among untrained responders. Models with real-time CPR feedback (ZOLL AED Plus, ZOLL AED 3, and the Cardiac Science Powerheart G5 iCPR variant) add coaching during compressions, which can build confidence for a responder unsure whether they are performing CPR correctly. See our detailed comparison at Semi-Auto vs Fully-Auto AED.
What are the total ongoing costs for pads and battery replacements over 5 years?
For the ZOLL AED Plus, approximately $200 over 5 years (two pad replacements at roughly $80 each, plus low-cost consumer battery replacement). Brands using proprietary batteries typically run somewhat higher due to battery cost. Combined with cabinet, signage, and basic staff training, total 5-year ongoing costs for a single-unit small business deployment run approximately $880 across the models compared here. See the full breakdown in Section 6.
Total AEDs ships free on orders $149 and above within the contiguous United States. See our full shipping policy and return policy before ordering, or call (855) 286-6384 and one of our program specialists will help match a specific model to your business.
