Premises Janitorial Services. Tenant shall provide, at its sole cost and expense, janitorial service to the Premises five days per week, and Landlord shall have no obligation to provide such services. Landlord shall have the right in its reasonable discretion to approve the janitorial company selected by Tenant and the scope of the services provided by the janitorial company. Tenant’s janitorial company shall comply with all of Landlord’s rules and regulations relating to contractors operating in the Building including, but not limited to, insurance requirements and security requirements. If Tenant’s janitorial company violates Landlord’s rules and regulations such a violation shall constitute a breach of this Lease by Tenant, and in addition to any other right or remedy available to Landlord, Landlord shall have the right to require Tenant to hire a new janitorial company. Notwithstanding that Tenant pays its own janitorial costs, janitorial costs for the common areas of the Building and Project may be included in Operating Expenses.

Landlord shall not provide janitorial or trash services for the Premises except as expressly provided in Section 6.1.3, above. Tenant shall be solely responsible for performing all janitorial and trash services and other cleaning of the Premises, all in compliance with Applicable Laws. In the event such service is provided by a third party janitorial service, and not by employees of Tenant, such service shall be a janitorial service approved in advance by Landlord, (Landlord shall provide Tenant with a list of approved vendors upon Tenant’s request). The janitorial and cleaning of the Premises shall be adequate to maintain the Premises in a manner consistent with Comparable Buildings.

Tenant shall be solely responsible for performing all janitorial and trash services and other cleaning of the Premises, all in compliance with Applicable Laws. In the event such service is provided by a third party janitorial service, and not by employees of Tenant, such service shall be a janitorial service approved in advance by Landlord (Landlord shall provide Tenant with a list of approved vendors upon Tenant’s request). The janitorial

Janitorial. Landlord shall provide janitorial services for the Common Areas and exterior window washing services, in a manner consistent with the standards of the Project; but Landlord shall not provide janitorial services for the Premises. Tenant shall perform all janitorial services and other cleaning within the Premises in a manner consistent with the standards of the Project. Without Landlord's prior consent, Tenant shall not use (and upon notice from Landlord shall cease using) janitorial service providers who would, in Landlord's reasonable and good faith judgment, disturb labor harmony with the workforce or trades engaged in performing other work, labor or services in or about the Building or the Common Areas.

Repair and Maintenance and Janitorial Service. Subject to Landlord’s obligations under this Lease, Tenant shall, during the term of this Lease, maintain the Premises in neat and clean order and condition and perform all repairs to the Premises and all fixtures, systems, and equipment therein (including Tenant’s equipment and other personal property and any HVAC Equipment serving the Premises) as are necessary to keep them in good working order and condition, reasonable use and wear thereof, condemnation, damage caused by Landlord or its employees or contractors and damage by fire or by casualty excepted and shall replace any damaged or broken glass in windows and doors of the Premises (except glass in the exterior walls of the Building) with glass of the same quality as that damaged or broken unless damaged or broken by Landlord.

Janitorial Service. Landlord shall not be obligated to provide any janitorial services to the Premises or replace any light bulbs, lamps, starters and ballasts for lighting fixtures within the Premises. Tenant shall be solely responsible, at Tenant’s sole cost and expense, for # performing all janitorial services, trash removal and other cleaning of the Premises, and # replacement of all light bulbs, lamps, starters and ballasts for lighting fixtures within the Premises, all as appropriate to maintain the Lab space within Premises in a first-class manner consistent with the first-class nature of the Building and Project. Such services to be provided by Tenant shall be performed by contractors and pursuant to service contracts approved by Landlord, such approval not to be unreasonably withheld, conditioned or delay. Tenant shall deposit trash as reasonably required in the area designated by Landlord from time to time. Landlord shall provide a dumpster and/or compactor at the loading dock for Tenant’s use for disposal of non-hazardous/non-controlled substances (and shall arrange for the regular removal of such trash from the dumpster and/or compactor). Subject to the provisions of [Section 22] of this Lease, Landlord shall have the right to inspect the Premises. In the event Tenant shall fail to provide any of the services described in this [Section 6.6] to be performed by Tenant within thirty (30) days after notice from Landlord, which notice shall not be required in the event of an emergency, Landlord shall have the right to provide such services and any charge or cost incurred by Landlord in connection therewith shall be deemed Additional Rent due and payable by Tenant within thirty (30) days of receipt by Tenant of a written statement of cost from Landlord.

Janitorial Service. Landlord shall not be obligated to provide any janitorial services to the Premises or replace any light bulbs, lamps, starters and ballasts for lighting fixtures within the Premises. Tenant shall be solely responsible, at Tenant’s sole cost and expense, for # performing all janitorial services, trash removal and other cleaning of the Premises, and # replacement of all light bulbs, lamps, starters and ballasts for lighting fixtures within the Premises, all as appropriate to maintain the Premises in a first-class manner consistent with the first-class nature of the Building and Project. Such services to be provided by Tenant shall be performed by contractors and pursuant to service contracts approved by Landlord. Tenant shall deposit trash as reasonably required in the area designated by Landlord from time to time. All trash containers must be covered and stored in a manner to prevent the emanation of odors into the Premises or the Project. Landlord shall have the right to inspect the Premises upon reasonable notice to Tenant and to require Tenant to provide additional cleaning, if necessary. In the event Tenant shall fail to provide

Janitorial Service. Landlord shall provide cleaning and janitorial service in and about the Complex and Leased Premises five days a week (which is currently scheduled for Sunday through Thursday, holidays excepted, subject to change by Landlord) in accordance with commercially reasonable standards in an office building in the city in which the Building is located.

Utilities, Janitorial Services. Landlord shall provide, subject to the terms of this Section 11, water, tepid water, electricity, heat, light, power, sewer, gas and fire sprinklers (to the extent the Project is plumbed for such services), compressed air, and such other utilities as are provided to the Premises pursuant to the Work Letter (inclusive of its exhibits) (including, by way of example, chilled water and condenser water) (collectively, “Utilities”), # refuse and trash collection and janitorial services for the Common Areas of the Building (collectively, “Landlord Janitorial Services”), and # landscaping and reasonable removal of accumulations of ice and snow from drives and walkways. The infrastructure for the Utilities shall be installed as set forth in the Plans and Specifications, and Landlord shall not replace such infrastructure with infrastructure having reduced capacities inconsistent with what was installed as set forth in the Plans and Specifications. Landlord shall pay, subject to Tenant’s reimbursement obligation or inclusion of such costs as Operating Expenses subject to the provisions of Section 5, for all Utilities used on the Premises that are not separately metered or submetered (if any), all maintenance charges for Utilities, and any storm sewer charges or other similar charges for Utilities imposed by any Governmental Authority or Utility provider, and any taxes, penalties, surcharges or similar charges thereon, as well as the cost for Landlord Janitorial Services. As part of the Work Letter, all Utilities will be separately metered or submetered as of the Commencement Date. Tenant shall arrange with the utility providers for, and shall pay directly to the utility providers, prior to delinquency, all separately metered or submetered Utilities and services which may be furnished to Tenant or the Premises during the Term. To the extent the utility provider will not provide a separate account for billing to Tenant for submetered Utilities, Tenant shall reimburse Landlord within 30 days following invoice for Landlord’s payments to the applicable utility

Utilities; Janitorial; Cleaning. Notwithstanding anything to the contrary contained in the Lease, Tenant shall be responsible, at Tenant's sole cost and expense, for providing: # cleaning and janitorial services in a first class manner and keeping with the standards of the Building, including but not limited to garbage and rubbish removal on a daily basis and the costs of dumpsters and services thereof, in the entire portion of the Premises that is used or occupied for non-administrative office uses including laboratory functions; and # all extraordinary utilities usage, costs and expenses (e.g., above standard office usage) used in the entire portion of the Premises that is used for non- administrative office uses including laboratory functions.